Advisor A & C Prospectus | Kinetics Alternative Income Fund

Kinetics Alternative Income Fund

Investment Objectives

The primary investment objective of the Alternative Income Fund is to provide current income and gains.The Alternative Income Fund seeks to obtain long-term growth of capital as a secondary objective. The Alternative Income Fund is the sole “feeder fund” to The Alternative Income Portfolio, a series of Kinetics Portfolios Trust.

Fees and Expenses of the Fund

This table describes the fees and expenses you may pay if you buy and hold shares of the Alternative Income Fund. You may qualify for sales charge discounts for Advisor Class A shares if you and your family invest, or agree to invest in the future, at least $50,000 in Advisor Class A shares of the Kinetics Funds. More information about these and other discounts is available from your financial professional and in the sections titled “Description of Advisor Classes” beginning on page 105 of the Fund’s prospectus, in Appendix A to this Prospectus - Financial Intermediary Sales Charge Variations, and “Purchasing Shares” beginning on page 58 of the Fund’s statement of additional information.

SHAREHOLDER FEES (fees paid directly from your investment)

Shareholder Fees - Advisor A & C Prospectus - Advisor A & C Prospectus - Kinetics Alternative Income Fund		Advisor Class A	Advisor Class C
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price)	[1]	5.75%	none
Maximum Deferred Sales Charge (as a percentage)	[1]	none	1.00%
Redemption Fee (as a percentage of Amount Redeemed)	[1]	(2.00%)	(2.00%)

ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses - Advisor A & C Prospectus - Advisor A & C Prospectus - Kinetics Alternative Income Fund		Advisor Class A	Advisor Class C
Management Fees (as a percentage of Assets)	[1]	0.90%	0.90%
Distribution and Service (12b-1) Fees	[2]	0.50%	1.00%
Other Expenses (as a percentage of Assets):		0.73%	0.73%
Acquired Fund Fees and Expenses		0.05%	0.05%
Expenses (as a percentage of Assets)	[3]	2.18%	2.68%
Fee Waiver or Reimbursement	[4]	(0.93%)	(0.93%)
Net Expenses (as a percentage of Assets)		1.25%	1.75%

Example.

This Example is intended to help you compare the cost of investing in the Alternative Income Fund with the cost of investing in other mutual funds. This Example assumes that you invest $10,000 in the Alternative Income Fund for the time periods indicated and then redeem all of your shares at the end of these periods. The Example also assumes that your investment has a 5% return each year and that the Alternative Income Fund’s operating expenses remain the same (taking into account the expense limitation only in the first year).

Although your actual costs may be higher or lower, based on these assumptions your cost for the Alternative Income Fund would be:Although your actual costs may be higher or lower, based on these assumptions your cost for the Alternative Income Fund would be:

Expense Example - Advisor A & C Prospectus - Advisor A & C Prospectus - Kinetics Alternative Income Fund - USD ($)	Expense Example, with Redemption, 1 Year	Expense Example, with Redemption, 3 Years	Expense Example, with Redemption, 5 Years	Expense Example, with Redemption, 10 Years
Advisor Class A	695	1,133	1,597	2,875
Advisor Class C	281	744	1,337	2,944

Expense Example, No Redemption - Advisor A & C Prospectus	Expense Example, No Redemption, 1 Year	Expense Example, No Redemption, 3 Years	Expense Example, No Redemption, 5 Years	Expense Example, No Redemption, 10 Years
Advisor A & C Prospectus | Kinetics Alternative Income Fund | Advisor Class C | USD ($)	178	744	1,337	2,944

Portfolio Turnover.

The Alternative Income Portfolio pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the Example, affect the Alternative Income Portfolio’s, and therefore the Alternative Income Fund’s, performance. During the most recent fiscal year, the Alternative Income Portfolio’s portfolio turnover rate was 0% of the average value of its portfolio.

Principal Investment Strategy

The Alternative Income Fund is a diversified fund that invests all of its investable assets in the Alternative Income Portfolio, a series of Kinetics Portfolios Trust. Under normal circumstances, the Alternative Income Portfolio will hold a portfolio of primarily fixed income securities and, conditions permitting, implement an equity put writing option strategy intended to generate returns from the receipt of option premiums. The Alternative Income Portfolio will thereby only be able to seek to fulfill its primary investment objective of generating current income and gains by collecting premiums on written put options while maintaining a portfolio of primarily fixed income securities that serve as collateral to cover obligations pursuant to the written options. In addition to writing options when appropriate, the Alternative Income Portfolio may also purchase options in certain circumstances. The Alternative Income Portfolio’s secondary objective is to achieve long-term growth of capital.

The Alternative Income Portfolio implements option strategies on market indexes, exchange-traded funds (“ETFs”) or company specific equity securities, receiving up-front cash payments from the purchasers of these options in exchange for providing the purchasers with the right to potentially sell an underlying security to the Alternative Income Portfolio. If the prevailing market value of the underlying equity securities on an expiration date exceeds the exercise price of the put option that the Alternative Income Portfolio has written, it is expected that the option will not be exercised. In such instance, the Alternative Income Portfolio would not be required to purchase any securities and the received premium would be considered income.

At the time of writing (selling) a put option, the aggregated amount of all the notional obligations of the option positions (the sum of all the exercise prices referenced) held by the Alternative Income Portfolio may not exceed 100% of the Alternative Income Portfolio’s total assets. In this way, the Alternative Income Portfolio intends to have available at all times cash or fixed income investments to satisfy any obligations to purchase securities pursuant to options written.

The Investment Adviser selects option investments based on market volatility levels, underlying security valuations and perceived market risks. Further, the Investment Adviser evaluates relative option premiums and implied volatilities in determining preferred option contract terms, such as exercise prices and expiration dates. The Alternative Income Portfolio will typically buy or sell exchange-traded options on market indexes, diversified and non-diversified ETFs, real estate investment trusts (“REITs”), convertible securities and U.S. listed stocks of individual companies. The Alternative Income Portfolio may also invest in foreign securities, including up to 100% in emerging markets, directly or through American Depositary Receipts (“ADRs”), Global Depositary Receipts (“GDRs”) and International Depositary Receipts (“IDRs”). To the extent the Alternative Income Portfolio buys or sells options on single stock equity securities, the aggregate notional exposure to a specific underlying company will typically not exceed 5% of the Alternative Income Portfolio’s net assets at the time of investment.

To satisfy collateral requirements related to the use of derivatives and provide full coverage of potential security purchase obligations related to written options, the Alternative Income Portfolio may invest up to 100% of its net assets in fixed income securities including cash or cash equivalents, fixed income closed-end funds (“CEFs”) and ETFs. There are no limitations as to the maturities or credit ratings of the fixed income securities in which the Alternative Income Portfolio may invest, however, fixed income securities held by the Alternative Income Portfolio are generally issued by the U.S. Government or investment grade, large capitalization U.S. companies.

In managing the Alternative Income Portfolio’s fixed income holdings, the Investment Adviser focuses on achieving a reasonable risk-adjusted return with an emphasis on capital preservation, while seeking long term growth of capital. The Investment Adviser selects fixed income securities based on market liquidity, duration risk, credit risk, and yield to maturity.

In connection with the Alternative Income Portfolio’s positions in derivatives, the Alternative Income Portfolio segregates liquid assets or will otherwise cover its position in accordance with applicable U.S. Securities and Exchange Commission (“SEC”) requirements. Additionally, the Alternative Income Portfolio may participate in securities lending arrangements up to 33-1/3% of the securities in its portfolio with brokers, dealers, and financial institutions (but not individuals) in order to increase the return on its portfolio.

The Alternative Income Portfolio may maintain during a temporary period, which could be for a short period or a longer period lasting several years or more, of abnormal conditions, a significant portion of its total assets in cash and securities, generally considered to be cash and cash equivalents, including, but not limited to: high quality, U.S. short-term debt securities and money market instruments.  The Investment Adviser will invest in such short-term cash positions to the extent that the Investment Adviser is unable to find sufficient investments meeting its criteria and when the Investment Adviser believes the purchase of additional equity securities would not further the investment objective of the Alternative Income Portfolio during such periods of time.  Additionally, to respond to adverse market, economic, political or other conditions, which may persist for short or long periods of time, the Alternative Income Portfolio may invest up to 100% of its assets in the types of high quality, U.S. short-term debt securities and money market instruments described above.

If the market advances during periods when the Alternative Income Portfolio is holding a large cash position, the Portfolio may not participate as much as it would have if it had been more fully invested in securities.  In the aforementioned temporary defensive periods, the Investment Adviser believes that an additional amount of liquidity in the Alternative Income Portfolio is desirable both to meet operating requirements and to take advantage of new investment opportunities. When the Alternative Income Portfolio holds a significant portion of assets in cash and cash equivalents, it may not meet its investment objective.

Principal Investment Risks

Investing in common stocks has inherent risks that could cause you to lose money.The principal risks of investing in the Alternative Income Fund, and indirectly the Alternative Income Portfolio, are listed below and could adversely affect the NAV, total return and the value of the Alternative Income Fund, Alternative Income Portfolio and your investment.

ª Management Risks: The Alternative Income Portfolio securities selected by the Investment Adviser may decline in value or not increase in value when the stock market in general is rising and may fail to meet the Alternative Income Portfolio’s, and therefore the Alternative Income Fund’s, investment objective. The Investment Adviser cannot guarantee the performance of the Alternative Income Fund, nor can it assure you that the market value of your investment will not decline.

ª Liquidity Risks: The Alternative Income Portfolio’s investments in options and, to the extent it invests in certain non-investment grade fixed income securities, including CEFs or ETFs, makes the Alternative Income Portfolio especially susceptible to the risk that during certain periods the liquidity of certain issuers or industries, or all securities within particular investment categories, will decrease or disappear suddenly and without warning as a result of adverse market or political events, or adverse investor perceptions.

ª Security Selection Risks: The Alternative Income Portfolio securities selected by the Investment Adviser may decline in value or not increase in value when the stock market in general is rising and may fail to meet the Alternative Income Portfolio’s, and therefore the Alternative Income Fund’s, investment objective.

ª Exchange-Traded Funds (ETFs) Risks: ETFs are registered investment companies whose shares are listed and traded on U.S. stock exchanges or otherwise traded in the over-the-counter market. In general, passively-managed ETFs seek to track a specified securities index or a basket of securities that an “index provider,” such as Standard & Poor’s, selects as representative of a market, market segment or industry sector. A passively-managed ETF is designed so that its performance will correspond closely with that of the index it tracks. Conversely, actively-managed ETFs seek an investment objective by investing in a basket of securities based on the investment strategy and discretion of the ETF’s adviser. A leveraged ETF will engage in transactions and purchase instruments that give rise to forms of leverage, including, among others, the use of reverse repurchase agreements and other borrowings, the investment of collateral from loans of portfolio securities, the use of when issued, delayed-delivery or forward commitment transactions or short sales.  To the extent a fund invests in ETFs that achieve leveraged exposure to their underlying indexes through the use of derivative instruments, the fund will indirectly be subject to leveraging risk. As a shareholder in an ETF, the Alternative Income Portfolio will bear its pro rata portion of an ETF’s expenses, including advisory fees, in addition to its own expenses.

ª Foreign Securities Risks: The Alternative Income Portfolio may invest in foreign securities directly or through ADRs, GDRs and IDRs. Foreign securities can carry higher returns but involve more risks than those associated with U.S. investments. Additional risks associated with investment in foreign securities include currency fluctuations, political and economic instability, differences in financial reporting standards and less stringent regulation of securities markets.

ª Emerging Markets Risks:The risk that the securities markets of emerging countries are less liquid, are especially subject to greater price volatility, have smaller market capitalizations, have less government regulation and are not subject to as extensive and frequent accounting, financial and other reporting requirements as the securities markets of more developed countries as have historically been the case.

ª Interest Rate Risk: The risk that when interest rates increase, fixed-income securities held by the Alternative Income Portfolio will decline in value. Long-term fixed-income securities will normally have more price volatility because of this risk than short-term fixed-income securities. It is likely there will be less governmental action in the near future to maintain low interest rates. The negative impact on fixed income securities from the resulting rate increases for that and other reasons could be swift and significant.

ª Credit/Default Risk: The risk that an issuer or guarantor of fixed-income securities held by the Alternative Income Portfolio (which may have low credit ratings), or the counterparty in a derivative investment, may default on its obligation to pay interest and repay principal.

ª Derivatives Risks: The Alternative Income Portfolio’s investments in options and other derivative instruments may result in loss. Derivative instruments may be illiquid, difficult to price and leveraged so that small changes may produce disproportionate losses to the Alternative Income Portfolio. If a secondary market does not exist for an option purchased or written by the Alternative Income Portfolio, it might not be possible to effect a closing transaction in the option (i.e., dispose of the option), with the result that (1) an option purchased by the Alternative Income Portfolio would have to be exercised in order for the Alternative Income Portfolio to realize any profit and (2) the Alternative Income Portfolio may not be able to sell portfolio securities covering an option written by it until the option expires or it delivers the underlying security, upon exercise. To the extent the Alternative Income Portfolio segregates assets to cover derivative positions, the Alternative Income Portfolio may impair its ability to meet current obligations, to honor requests for redemption and to manage the Alternative Income Portfolio properly in a manner consistent with its stated investment objective.

ª Leveraging Risks: Investments in derivative instruments may give rise to a form of leverage. The Investment Adviser may engage in speculative transactions, which involve substantial risk and leverage. The use of leverage by the Investment Adviser may increase the volatility of the Alternative Income Portfolio. These leveraged instruments may result in losses to the Alternative Income Portfolio or may adversely affect the Alternative Income Portfolio’s NAV or total return, because instruments that contain leverage are more sensitive to changes in interest rates. The Alternative Income Portfolio may also have to sell assets at inopportune times to satisfy its obligations in connection with such transactions.

ª Option Transaction Risks: Purchasing and writing put and call options are highly specialized activities and entail greater than ordinary investment risks. The successful use of options depends in part on the ability of the Investment Adviser to manage future price fluctuations and the degree of correlation between the options and securities (or currency) markets. By writing put options on equity securities, the Alternative Income Portfolio gives up the opportunity to benefit from potential increases in the value of the common stocks above the exercise prices of the written put options, but continues to bear the risk of declines in the value of its common stock portfolio. The Alternative Income Portfolio will receive a premium from writing a covered call option that it retains whether or not the option is exercised. The premium received from the written options may not be sufficient to offset any losses sustained from the volatility of the underlying equity securities over time.

ª REITs Risks: REITs may be affected by economic forces and other factors related to the real estate industry. Investing in REITs may involve risks similar to those associated with investing in small capitalization companies. REITs may have limited financial resources, may trade less frequently and in a limited volume and may be subject to more abrupt or erratic price movements than larger company securities. Historically, small capitalization stocks, such as REITs, have been more volatile in price than the larger capitalization stocks included in the S&P 500^® Index.

ª Convertible Securities Risks: Convertible securities are subject to the risks affecting both equity and fixed income securities, including market, credit, liquidity and interest rate risk.

ª Sector Concentration Risk: Although the Alternative Income Portfolio will not concentrate its investments in any industries, the Alternative Income Portfolio may, at certain times, have concentrations in one or more sectors which may cause the Portfolio to be more sensitive to economic changes or events occurring in those sectors. As of December 31, 2018, the Portfolio had 29.7% invested in the Finance and Insurance sector.

Who may want to invest?

The Alternative Income Fund may be appropriate for investors who:

ª wish to diversify their portfolios;

ª wish to generate income and capital; and

ª are comfortable with the risks described herein.

Performance

The bar chart and table shown below illustrate the variability of the Alternative Income Fund’s returns. The bar chart indicates the risks of investing in the Alternative Income Fund by showing the changes in the Alternative Income Fund’s performance from year to year (on a calendar year basis). The table shows how the Alternative Income Fund’s average annual returns, before and after taxes (after taking into account any sales charges) compared with those of the Bloomberg Barclays U.S. 1-3 Year Credit Bond Index and the Bloomberg Barclays U.S. Aggregate Bond Index, which represent broad measures of market performance. The past performance of the Alternative Income Fund, before and after taxes, is not necessarily an indication of how the Alternative Income Fund or the Alternative Income Portfolio will perform in the future. Performance reflects fee waivers in effect. If fee waivers were not in place, the Alternative Income Fund’s performance would be reduced. The bar chart shows how the performance of Advisor Class A shares (the Class with the longest period of annual returns) has varied from year to year. The returns for Advisor Class C shares were different than the returns shown below because each Class of shares has different expenses. Updated performance information is available on the Fund’s website at http://www.kineticsfunds.com or by calling the Fund toll-free at (800) 930-3828.

Important note about performance reflecting the Fund’s prior investment strategy. The performance shown for periods prior to January 1, 2013 reflects a previous investment objective and strategy. The Fund sought long-term growth of capital as its primary investment objective with a secondary objective to obtain current income while investing at least 80% of its assets in securities of companies engaged in water infrastructure and natural resources with a specific water theme and related activities. Effective January 1, 2013, the Fund’s performance reflects the significantly different investment objective of seeking to generate income and capital gains with long-term growth of capital as its secondary investment objective while investing in primarily fixed income securities while utilizing an options strategy.

Sales charges are not reflected in the bar chart. If these amounts were reflected, returns would be less than those shown.

The Alternative Income Fund – Advisor Class A Calendar Year Returns as of 12/31

Best Quarter:	2009	Q2	17.81%
Worst Quarter:	2011	Q3	-14.15%

Average Annual Total Returns as of 12/31/2018

The after-tax returns for the Alternative Income Fund’s Advisor Class A shares as shown in the following table are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.Your actual after-tax returns depend on your tax situation and may differ from those shown. If you own Fund shares in a tax-deferred account, such as a 401(k) plan or an individual retirement account (“IRA”), the information on after-tax returns is not relevant to your investment.After-tax returns are shown for Advisor Class A shares only. After-tax returns for Advisor Class C shares will differ.The Return After Taxes on Distributions and Sale of Fund Shares is higher than other return figures when a capital loss occurs upon the redemption of Fund shares.

Average Annual Total Returns - Advisor A & C Prospectus - Advisor A & C Prospectus - Kinetics Alternative Income Fund	Label	1 Year		5 Years		10 Years		Since Inception		Inception Date
Bloomberg Barclays U.S. 1-3 Year Credit Bond Index (reflects no deductions for fees, expenses or taxes)	Bloomberg Barclays U.S. 1-3 Year Credit Bond Index (reflects no deductions for fees, expenses or taxes)	1.64%		1.47%		2.96%		2.91%		Jul. 29, 2007
Bloomberg Barclays US Aggregate Bond Index (reflects no deduction for fees, expenses or taxes)	Bloomberg Barclays U.S. Aggregate Bond Index (reflects no deductions for fees, expenses or taxes)	0.01%		2.52%		3.48%		3.99%		Jul. 29, 2007
Advisor Class A	The Alternative Income Fund (KWIAX) Class A Return Before Taxes	(5.14%)		0.86%		2.34%		(0.31%)		Jul. 29, 2007
Advisor Class A | After Taxes on Distributions	The Alternative Income Fund (KWIAX) Class A Return After Taxes on Distributions	(5.44%)		0.79%		2.17%		(0.48%)
Advisor Class A | After Taxes on Distributions and Sales	The Alternative Income Fund (KWIAX) Class A Return After Taxes on Distributions and Sale of Fund Shares	(3.04%)	[1]	0.63%	[1]	1.76%	[1]	(0.29%)	[1]
Advisor Class C	The Alternative Income Fund (KWICX) Class C Return Before Taxes	(0.85%)		1.56%		2.44%		(0.29%)		Jul. 29, 2007

Advisor A & C Prospectus | Kinetics Internet Fund

Kinetics Internet Fund

Investment Objectives

The investment objective of the Internet Fund is long-term growth of capital.The Internet Fund seeks to obtain current income as a secondary objective. The Internet Fund is the sole “feeder fund” to The Internet Portfolio, a series of Kinetics Portfolios Trust.

Fees and Expenses of the Fund

This table describes the fees and expenses you may pay if you buy and hold shares of the Internet Fund. You may qualify for sales charge discounts for Advisor Class A shares if you and your family invest, or agree to invest in the future, at least $50,000 in Advisor Class A shares of the Kinetics Funds. More information about these and other discounts is available from your financial professional and in the sections titled “Description of Advisor Classes” beginning on page 105 of the Fund’s prospectus, in Appendix A to this Prospectus - Financial Intermediary Sales Charge Variations, and “Purchasing Shares” beginning on page 58 of the Fund’s statement of additional information.

SHAREHOLDER FEES (fees paid directly from your investment)

Shareholder Fees - Advisor A & C Prospectus - Advisor A & C Prospectus - Kinetics Internet Fund		Advisor Class A	Advisor Class C
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price)	[1]	5.75%	none
Maximum Deferred Sales Charge (as a percentage)	[1]	none	1.00%
Redemption Fee (as a percentage of Amount Redeemed)	[1]	(2.00%)	(2.00%)

ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses - Advisor A & C Prospectus - Advisor A & C Prospectus - Kinetics Internet Fund		Advisor Class A	Advisor Class C
Management Fees (as a percentage of Assets)	[1]	1.25%	1.25%
Distribution and Service (12b-1) Fees	[2]	0.50%	1.00%
Other Expenses (as a percentage of Assets):		0.34%	0.34%
Expenses (as a percentage of Assets)		2.09%	2.59%

Example.

This Example is intended to help you compare the cost of investing in the Internet Fund with the cost of investing in other mutual funds. This Example assumes that you invest $10,000 in the Internet Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Internet Fund’s operating expenses remain the same.

Although your actual costs may be higher or lower, based on these assumptions your costs for the Internet Fund would be:Although your actual costs may be higher or lower, based on these assumptions your costs for the Internet Fund would be:

Expense Example - Advisor A & C Prospectus - Advisor A & C Prospectus - Kinetics Internet Fund - USD ($)	Expense Example, with Redemption, 1 Year	Expense Example, with Redemption, 3 Years	Expense Example, with Redemption, 5 Years	Expense Example, with Redemption, 10 Years
Advisor Class A	775	1,192	1,634	2,857
Advisor Class C	365	805	1,375	2,925

Expense Example, No Redemption - Advisor A & C Prospectus	Expense Example, No Redemption, 1 Year	Expense Example, No Redemption, 3 Years	Expense Example, No Redemption, 5 Years	Expense Example, No Redemption, 10 Years
Advisor A & C Prospectus | Kinetics Internet Fund | Advisor Class C | USD ($)	262	805	1,375	2,925

Portfolio Turnover.

The Internet Portfolio pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the Example, affect the Internet Portfolio’s, and therefore the Internet Fund’s, performance. During the most recent fiscal year, the Internet Portfolio’s portfolio turnover rate was 15% of the average value of its portfolio.

Principal Investment Strategy

The Internet Fund is a non-diversified fund that invests all of its investable assets in the Internet Portfolio, a series of Kinetics Portfolios Trust. Under normal circumstances, the Internet Portfolio invests at least 80% of its net assets plus any borrowings for investment purposes in common stocks, convertible securities, warrants and other equity securities having the characteristics of common stocks (such as American Depositary Receipts (“ADRs”), Global Depositary Receipts (“GDRs”) and International Depositary Receipts (“IDRs”)), of U.S. and foreign companies engaged in the Internet and Internet‑related activities and whose businesses are vastly improved through the distribution of content and reduction of costs with the use of the Internet, such as content providers, computer hardware and software, venture capital, Internet service providers, Internet portals, wireless/broadband access, e-commerce, financial service companies, auction houses, and telecommunications. The Internet Portfolio may also invest in exchange-traded funds (“ETFs”) and purchase and write options for hedging purposes and/or direct investment.

The Internet Portfolio may invest up to 20% of its total assets in convertible and non-convertible debt securities rated below investment grade, also known as junk bonds, or unrated securities that the Investment Adviser has determined to be of comparable quality.

The Investment Adviser selects portfolio securities by evaluating a company’s positioning and business model as well as its ability to grow and expand its activities via the Internet or achieve a competitive advantage in cost/profitability and brand image leveraging via use of the Internet. The Investment Adviser also considers a company’s fundamentals by reviewing its balance sheets, corporate revenues, earnings and dividends. Furthermore, the Investment Adviser looks at the amount of capital a company currently expends on research and development. The Internet Portfolio may invest in companies of any size, including small and medium-sized companies. Additionally, the Internet Portfolio may participate in securities lending arrangements up to 33-1/3% of the securities in its portfolio with brokers, dealers, and financial institutions (but not individuals) in order to increase the return on its portfolio.

The Internet Portfolio may invest indirectly in bitcoins exclusively through a Delaware statutory trust (“Grayscale Bitcoin Trust”) that offers exposure to bitcoin. Grayscale Bitcoin Trust offers shares on an ongoing basis through private placements pursuant to the exemption from registration provided by Rule 506(c) under Regulation D of the Securities Act of 1933, as amended. Bitcoins are a digital commodity that are not issued by a government, bank or central organization. Bitcoins exist on an online, peer-to-peer computer network (the “Bitcoin Network”) that hosts a public transaction ledger where bitcoin transfers are recorded (the “Blockchain”). Bitcoins have no physical existence beyond the record of transactions on the Blockchain. The Grayscale Bitcoin Trust invests principallyin bitcoins.

The Internet Portfolio contributed a portion of its holdings in the Grayscale Bitcoin Trustto a wholly-owned and controlled subsidiary organized under the laws of the Cayman Islands (the “Cayman Subsidiary”). The Internet Portfolio realized capital gain on the transfer to the extent the value of the transferred Grayscale Bitcoin Trust interest at the time of transfer exceeded its tax basis in the hands of the Internet Portfolio.

The Internet Portfolio is also the sole shareholder of a wholly owned subsidiary organized under Delaware law (the “Delaware Subsidiary”). The Internet Portfolio contributed a portion of its holdings in the Grayscale Bitcoin Trust to the Delaware Subsidiary. Any net gains that the Delaware Subsidiary recognizes on future sales of the contributed Grayscale Bitcoin Trust shares will be subject to federal and state corporate income tax, but the dividends that the Delaware Subsidiary pays to the Internet Portfolio (i.e., those gains, net of the tax paid and any other expenses of the Delaware Subsidiary, such as its management and advisory fees) will be eligible to be treated as “qualified dividend income” under the Internal Revenue Code. The Delaware Subsidiary and the Cayman Subsidiary are each referred to herein as a “Subsidiary” and collectively as “Subsidiaries.” Additional information regarding the tax treatment of the Fund is provided in the “Taxes” section of the SAI.

In the future, the Internet Portfolio may seek to gain additional exposure to the Grayscale Bitcoin Trust that may not produce qualifying income for the Internet Fund under the Internal Revenue Code. The Internet Portfolio will not make any additional investments in the Grayscale Bitcoin Trust if as a result of such investment, its aggregate investment in the Grayscale Bitcoin Trust, either directly or through a Subsidiary, would be more than 15% of its assets at the time of the investment.

Each Subsidiary invests primarily in the Grayscale Bitcoin Trust. The Internet Portfolio will invest in its Subsidiaries within the limitations of the federal tax laws, rules and regulations that apply to “regulated investment companies” (“RICs”) under Subchapter M of Subtitle A, Chapter 1, of the Internal Revenue Code (“Subchapter M”). However, the Internet Portfolio and each Subsidiary comply with the same fundamental investment restrictions on an aggregate basis, to the extent those restrictions are applicable to the investment activities of each Subsidiary. Each Subsidiary also complies with Section 17 of the Investment Company Act of 1940 (the “1940 Act”) relating to affiliated transactions and custody. Unlike the Internet Fund, each Subsidiary does not, and will not, seek to qualify as a RIC. The Internet Portfolio is the sole shareholder of each Subsidiary and does not expect shares of the Subsidiaries to be offered or sold to other investors.

Sell decisions are generally triggered by either adequate value being achieved, as determined by the Investment Adviser, or by an adverse change in a company’s operating performance or a deterioration of the company’s business model.  A sell trigger may also occur if the Investment Adviser discovers a new investment opportunity that it believes is more compelling and represents a greater risk reward profile than other investment(s) held by the Internet Portfolio.

The Internet Portfolio may maintain during a temporary period, which could be for a short period or a longer period lasting several years or more, of abnormal conditions, a significant portion of its total assets in cash and securities, generally considered to be cash and cash equivalents, including, but not limited to: high quality, U.S. short-term debt securities and money market instruments.  The Investment Adviser will invest in such short-term cash positions to the extent that the Investment Adviser is unable to find sufficient investments meeting its criteria and when the Investment Adviser believes the purchase of additional equity securities would not further the investment objective of the Internet Portfolio during such periods of time.  Additionally, to respond to adverse market, economic, political or other conditions, which may persist for short or long periods of time, the Internet Portfolio may invest up to 100% of its assets in the types of high quality, U.S. short-term debt securities and money market instruments described above.

If the market advances during periods when the Internet Portfolio is holding a large cash position, the Portfolio may not participate as much as it would have if it had been more fully invested in securities.  In the aforementioned temporary defensive periods, the Investment Adviser believes that an additional amount of liquidity in the Internet Portfolio is desirable both to meet operating requirements and to take advantage of new investment opportunities. When the Internet Portfolio holds a significant portion of assets in cash and cash equivalents, it may not meet its investment objective.

Principal Investment Risks

Investing in common stocks has inherent risks that could cause you to lose money.The principal risks of investing in the Internet Fund, and indirectly the Internet Portfolio, are listed below and could adversely affect the net asset value NAV, total return and value of the Internet Fund, Internet Portfolio and your investment.

ª Stock Market Risks: Stock mutual funds are subject to stock market risks and significant fluctuations in value. If the stock market declines in value, the Internet Portfolio, and therefore the Internet Fund, is likely to decline in value and you could lose money on your investment.

ª Stock Selection Risks: The portfolio securities selected by the Investment Adviser may decline in value or not increase in value when the stock market in general is rising and may fail to meet the Internet Portfolio’s, and therefore the Internet Fund’s, investment objective.

ª Liquidity Risks: The Investment Adviser may not be able to sell portfolio securities at an optimal time or price.

ª Internet Industry Concentration Risks: Investing a substantial portion of the Internet Portfolio’s assets in the Internet industry carries the risk that Internet-related securities will decline in price due to Internet developments. Companies that conduct business on the Internet or derive a substantial portion of their revenues from Internet-related activities in general are subject to a rate of change in technology and competition which is generally higher than that of other industries.

ª Small and Medium-Size Company Risks: The Internet Portfolio may invest in the equity securities of small and medium-size companies. Small and medium-size companies often have narrower markets and more limited managerial and financial resources than do larger, more established companies. As a result, their performance can be more volatile and they face a greater risk of business failure, which could increase the volatility of the Internet Portfolio’s assets.

ª Exchange-Traded Funds (ETFs) Risks: ETFs are registered investment companies whose shares are listed and traded on U.S. stock exchanges or otherwise traded in the over-the-counter market. In general, passively-managed ETFs seek to track a specified securities index or a basket of securities that an “index provider,” such as Standard & Poor’s, selects as representative of a market, market segment or industry sector. A passively-managed ETF is designed so that its performance will correspond closely with that of the index it tracks.A leveraged ETF will engage in transactions and purchase instruments that give rise to forms of leverage, including, among others, the use of reverse repurchase agreements and other borrowings, the investment of collateral from loans of portfolio securities, the use of when issued, delayed-delivery or forward commitment transactions or short sales. To the extent a fund invests in ETFs that achieve leveraged exposure to their underlying indexes through the use of derivative instruments, the fund will indirectly be subject to leveraging risk. As a shareholder in an ETF, the Internet Portfolio will bear its pro rata portion of an ETF’s expenses, including advisory fees, in addition to its own expenses.

ª Foreign Securities Risks: The Internet Portfolio may invest in foreign securities directly or through ADRs, GDRs and IDRs. Foreign securities can carry higher returns but involve more risks than those associated with U.S. investments. Additional risks associated with investment in foreign securities include currency fluctuations, political and economic instability, differences in financial reporting standards and less stringent regulation of securities markets.

ª Non-Diversification Risks:As a non-diversified investment company, the Internet Portfolio can invest a large percentage of its assets in a small number of issuers. As a result, a change in the value of any one investment may affect the overall value of the Internet Portfolio’s shares, and therefore the Internet Fund’s shares, more than shares of a diversified mutual fund that holds more investments.

ª Interest Rate Risk: The risk that when interest rates increase, fixed-income securities held by the Internet Portfolio will decline in value. Long-term fixed-income securities will normally have more price volatility because of this risk than short-term fixed-income securities. It is likely there will be less governmental action in the near future to maintain low interest rates. The negative impact on fixed income securities from the resulting rate increases for that and other reasons could be swift and significant.

ª Leveraging Risks: Investments in derivative instruments may give rise to a form of leverage. The Investment Adviser may engage in speculative transactions, which involve substantial risk and leverage. The use of leverage by the Investment Adviser may increase the volatility of the Internet Portfolio. These leveraged instruments may result in losses to the Internet Portfolio or may adversely affect the Internet Portfolio’s NAV or total return, because instruments that contain leverage are more sensitive to changes in interest rates. The Internet Portfolio may also have to sell assets at inopportune times to satisfy its obligations in connection with such transactions.

ª Option Transaction Risks: Purchasing and writing put and call options are highly specialized activities and entail greater than ordinary investment risks. The successful use of options depends in part on the ability of the Investment Adviser to manage future price fluctuations and the degree of correlation between the options and securities markets. By writing put options on equity securities, the Internet Portfolio gives up the opportunity to benefit from potential increases in the value of the common stocks above the strike prices of the written put options, but continues to bear the risk of declines in the value of its common stock portfolio. The Internet Portfolio will receive a premium from writing a covered call option that it retains whether or not the option is exercised. The premium received from the written options may not be sufficient to offset any losses sustained from the volatility of the underlying equity securities over time.

ª Below Investment Grade Debt Securities Risks: Generally, below investment grade debt securities, i.e., junk bonds, are subject to greater credit risk, price volatility and risk of loss than investment grade securities. Junk bonds are considered to be speculative in nature.

ª Convertible Securities Risks: Convertible securities are subject to the risks affecting both equity and fixed income securities, including market, credit, liquidity and interest rate risk.

ª Participatory Notes Risks: The return on a participatory note (“P-note”) is linked to the performance of the issuers of the underlying securities. In addition, P-notes are subject to liquidity risk.

ª Management Risks: There is no guarantee that the Internet Fund will meet its investment objective. The Investment Adviser does not guarantee the performance of the Internet Fund, nor can it assure you that the market value of your investment will not decline.

ª Bitcoin Risks: The value of the Internet Portfolio’s investment in the Grayscale Bitcoin Trust directly and indirectly through its Subsidiaries is subject to fluctuations in the value of bitcoins. The value of bitcoins is determined by the supply of and demand for bitcoins in the global market for the trading of bitcoins, which consists of transactions on electronic bitcoin exchanges (“Bitcoin Exchanges”). Pricing on Bitcoin Exchanges and other venues can be volatile and can adversely affect the value of the Grayscale Bitcoin Trust. Currently, there is relatively small use of bitcoins in the retail and commercial marketplace in comparison to the relatively large use of bitcoins by speculators, thus contributing to price volatility that could adversely affect the Internet Portfolio’s investment in the Grayscale Bitcoin Trust. Bitcoin transactions are irrevocable, and stolen or incorrectly transferred bitcoins may be irretrievable. As a result, any incorrectly executed bitcoin transactions could adversely affect the value of the Internet Portfolio’s investment in the Grayscale Bitcoin Trust. Shares of the Grayscale Bitcoin Trust may trade at a premium or discount to the net asset value of the Grayscale Bitcoin Trust.

ª Regulatory Risk: Bitcoin is generally not subject to the same degree of regulation as are registered U.S. securities. The reporting, accounting and auditing standards for Bitcoin may differ from the standards for registered U.S. securities. Furthermore, countries, including the U.S., may in the future curtail or outlaw the acquisition, use or redemption of bitcoins.

ª Volatility Risk: The Portfolio may have investments, including but not limited to Bitcoin, that appreciate or depreciate significantly in value over short periods of time. This may cause the Portfolio’s net asset value per share to experience significant increases or declines in value over short periods of time.

ª Valuation Risk: The sales price the Portfolio could receive for any particular portfolio investment may differ from the Portfolio’s valuation of the investment, particularly for securities or other investments, such as Bitcoin, that trade in thin or volatile markets or that are valued using a fair value methodology. Valuation may be more difficult in times of market turmoil since many investors and market makers may be reluctant to purchase complex instruments or quote prices for them. The Portfolio’s ability to value its investments may be impacted by technological issues and/or errors by pricing services or other third party service providers. Shares of Grayscale Bitcoin Trust are intended to reflect the price of bitcoin assets, less fees and expenses, and the shares currently trade at a substantial premium to the net asset value of such assets. As such, the price of Grayscale Bitcoin Trust may go down even if the price of the underlying asset, bitcoin, remains unchanged. Additionally, shares that trade at a premium mean that an investor who purchases $1 of a portfolio will actually own less than $1 in assets.

ª Subsidiary Risks: By investing in its Subsidiaries, the Internet Portfolio is indirectly exposed to the risks associated with each Subsidiary’s investments. Those investments held by the Subsidiaries are generally similar to the investments that are permitted to be held by the Internet Portfolio and are subject to the same risks that would apply to similar investments if held directly by the Internet Portfolio. Each Subsidiary is not registered under the 1940 Act and, unless otherwise noted in this Prospectus, is not subject to all the investor protections of the 1940 Act. In addition, changes in the laws of the United States, Delaware and/or the Cayman Islands could result in the inability of the Internet Portfolio and/or its Subsidiaries to continue to operate and could adversely affect the Internet Fund’s performance.

ª Tax Risks: In order to qualify as a RIC, the Internet Fund must meet certain requirements regarding the source of its income, the diversification of its assets and the distribution of its income. Under the test regarding the source of a RIC’s income, at least 90% of the gross income of the RIC each year must be qualifying income, which consists of dividends, interest, gains on investments in securities and certain other categories of investment income. It appears to be the position of the Internal Revenue Service (“IRS”) that gain realized on bitcoin investments such as investments in the Grayscale Bitcoin Trust will not be qualifying income. The Internet Portfolio’s investment in each Subsidiary is expected to provide the Internet Fund with exposure to such bitcoin investments within the limitations of the Internal Revenue Code for qualification as a RIC because, under applicable tax rules, the income earned by each Subsidiary will flow out as qualifying income for the RIC even though the income would not be qualifying income if earned directly by the RIC or directly by an entity classified as a partnership for federal income tax purposes, such as the Internet Portfolio in which the RIC invests. There is a risk, however, that the IRS might assert that the income derived from the Internet Portfolio’s investment in a Subsidiary will not be considered qualifying income. If the Internet Fund were to fail to qualify as a RIC and became subject to federal income tax, shareholders of the Internet Fund would be subject to diminished returns. Changes in the laws of the United States, Delaware and/or the Cayman Islands could result in the inability of the Internet Portfolio and/or its Subsidiaries to operate as described in this Prospectus and could adversely affect the Internet Fund. For example, the Cayman Islands does not currently impose any income, corporate or capital gains tax or withholding tax on the Cayman Subsidiary. If Cayman Islands law changes such that the Cayman Subsidiary must pay Cayman Islands taxes, Internet Fund shareholders would likely suffer decreased investment returns.

Who may want to invest?

The Internet Fund may be appropriate for investors who:

ª wish to invest for the long-term;

ª want to diversify their portfolios;

ª want to allocate some portion of their long-term investments to value equity investing;

ª are willing to accept the volatility associated with equity and Bitcoin investing; and

ª are comfortable with the risks described herein.

Performance

The bar chart and table shown below illustrate the variability of the Internet Fund’s returns. The bar chart indicates the risks of investing in the Internet Fund by showing the changes in the Internet Fund’s performance from year to year (on a calendar year basis). The table shows how the Internet Fund’s average annual returns, before and after taxes, (after taking into account any sales charges) compare with those of the S&P 500^® Index and the NASDAQ Composite^® Index, which represent broad measures of market performance. The past performance of the Internet Fund, before and after taxes, is not necessarily an indication of how the Internet Fund or the Internet Portfolio will perform in the future. The bar chart shows how the performance of Advisor Class A shares (the Class with the longest period of annual returns) has varied from year to year. The returns for Advisor Class C shares were different than the returns shown below because each Class of shares has different expenses. Updated performance information is available on the Internet Fund’s website at http://www.kineticsfunds.com or by calling the Fund toll-free at (800) 930-3828.

Sales charges are not reflected in the bar chart. If these amounts were reflected, returns would be less than those shown.

The Internet Fund – Advisor Class A Calendar Year Returns as of 12/31

Best Quarter:	2017	Q4	27.31%
Worst Quarter:	2011	Q3	-18.49%

Average Annual Total Returns as of 12/31/2018

The after-tax returns for the Internet Fund’s Advisor Class A shares as shown in the following table are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.Your actual after-tax returns depend on your tax situation and may differ from those shown. If you own Fund shares in a tax-deferred account, such as a 401(k) plan or an individual retirement account (“IRA”), the information on after-tax returns is not relevant to your investment. After-tax returns are shown for Advisor Class A shares only. After-tax returns for Advisor Class C shares will differ. The Return After Taxes on Distributions and Sale of Fund Shares is higher than other return figures when a capital loss occurs upon the redemption of Fund shares.

Average Annual Total Returns - Advisor A & C Prospectus - Advisor A & C Prospectus - Kinetics Internet Fund	Label	1 Year		5 Years		10 Years		Since Inception	[1]	Inception Date
Advisor Class A	The Internet Fund (KINAX) Class A Return Before Taxes	(31.65%)		0.64%		12.34%		6.16%		Apr. 26, 2001
Advisor Class A | After Taxes on Distributions	The Internet Fund (KINAX) Class A Return After Taxes on Distributions	(36.61%)		(3.36%)		9.89%		4.79%
Advisor Class A | After Taxes on Distributions and Sales	The Internet Fund (KINAX) Class A Return After Taxes on Distributions and Sale of Fund Shares	(15.30%)	[2]	0.51%	[2]	10.36%	[2]	5.12%	[2]
Advisor Class A | S&P 500® Index (reflects no deduction for fees, expenses, or taxes)	S&P 500® Index (reflects no deduction for fees, expenses or taxes)	(4.38%)		8.49%		13.12%		6.19%		Apr. 26, 2001
Advisor Class A | NASDAQ Composite® Index (reflects no deductions for fees, expenses or taxes)	NASDAQ Composite® Index (reflects no deduction for fees, expenses or taxes)	(3.88%)		9.70%		15.45%		6.91%		Apr. 26, 2001
Advisor Class C	The Internet Fund (KINCX) Class C Return Before Taxes	(28.34%)		1.34%		12.45%		7.28%		Feb. 16, 2007
Advisor Class C | S&P 500® Index (reflects no deduction for fees, expenses, or taxes)	S&P 500® Index (reflects no deductions for fees, expenses or taxes)	(4.38%)		8.49%		13.12%		6.93%		Feb. 16, 2007
Advisor Class C | NASDAQ Composite® Index (reflects no deductions for fees, expenses or taxes)	NASDAQ Composite® Index (reflects no deductions for fees, expenses or taxes)	(3.88%)		9.70%		15.45%		8.58%		Feb. 16, 2007

Advisor A & C Prospectus | Kinetics Global Fund

Kinetics Global Fund

Investment Objective

The investment objective of the Global Fund is long-term growth of capital. The Global Fund is the sole “feeder fund” to The Global Portfolio, a series of Kinetics Portfolios Trust.

Fees and Expenses of the Fund

This table describes the fees and expenses you may pay if you buy and hold shares of the Global Fund. You may qualify for sales charge discounts for Advisor Class A shares if you and your family invest, or agree to invest in the future, at least $50,000 in Advisor Class A shares of the Kinetics Funds. More information about these and other discounts is available from your financial professional and in the sections titled “Description of Advisor Classes” beginning on page 105 of the Fund’s prospectus, in Appendix A to this Prospectus - Financial Intermediary Sales Charge Variations, and “Purchasing Shares” beginning on page 58 of the Fund’s statement of additional information.

SHAREHOLDER FEES (fees paid directly from your investment)

Shareholder Fees - Advisor A & C Prospectus - Advisor A & C Prospectus - Kinetics Global Fund		Advisor Class A	Advisor Class C
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price)	[1]	5.75%	none
Maximum Deferred Sales Charge (as a percentage)	[1]	none	1.00%
Redemption Fee (as a percentage of Amount Redeemed)	[1]	(2.00%)	(2.00%)

ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses - Advisor A & C Prospectus - Advisor A & C Prospectus - Kinetics Global Fund		Advisor Class A	Advisor Class C
Management Fees (as a percentage of Assets)	[1]	1.25%	1.25%
Distribution and Service (12b-1) Fees	[2]	0.50%	1.00%
Other Expenses (as a percentage of Assets):		1.03%	1.03%
Expenses (as a percentage of Assets)		2.78%	3.28%
Fee Waiver or Reimbursement	[3]	(1.14%)	(1.14%)
Net Expenses (as a percentage of Assets)		1.64%	2.14%

Example.

This Example is intended to help you compare the cost of investing in the Advisor Class A and Advisor Class C shares of the Global Fund with the cost of investing in other mutual funds. This Example assumes that you invest $10,000 in the Global Fund for the time periods indicated and then redeem all of your shares at the end of these periods. The Example also assumes that your investment has a 5% return each year and that the Global Fund’s operating expenses remain the same (taking into account the expense limitation only in the first year).

Although your actual costs may be higher or lower, based on these assumptions your cost for the Global Fund would be:

Expense Example - Advisor A & C Prospectus - Advisor A & C Prospectus - Kinetics Global Fund - USD ($)	Expense Example, with Redemption, 1 Year	Expense Example, with Redemption, 3 Years	Expense Example, with Redemption, 5 Years	Expense Example, with Redemption, 10 Years
Advisor Class A	732	1,286	1,864	3,427
Advisor Class C	320	903	1,614	3,499

Expense Example, No Redemption - Advisor A & C Prospectus	Expense Example, No Redemption, 1 Year	Expense Example, No Redemption, 3 Years	Expense Example, No Redemption, 5 Years	Expense Example, No Redemption, 10 Years
Advisor A & C Prospectus | Kinetics Global Fund | Advisor Class C | USD ($)	217	903	1,614	3,499

Portfolio Turnover.

The Global Portfolio pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the Example, affect the Global Portfolio’s, and therefore the Global Fund’s, performance. During the most recent fiscal year, the Global Portfolio’s portfolio turnover rate was 28% of the average value of its portfolio.

Principal Investment Strategy

The Global Fund is a diversified fund that invests all of its investable assets in the Global Portfolio, a series of Kinetics Portfolios Trust. Under normal circumstances, the Global Portfolio invests at least 65% of its net assets plus any borrowings for investment purposes in common stocks, exchange traded funds (“ETFs”), convertible securities, warrants and other equity securities having the characteristics of common stocks (such as American Depositary Receipts (“ADRs”), Global Depositary Receipts (“GDRs”) and International Depositary Receipts (“IDRs”)) of foreign and U.S. companies listed on publicly traded exchanges. At least 40%, of the Global Portfolio’s net assets, will be invested in companies located outside the U.S. The Global Portfolio will at all times have exposure to at least three (3) countries, which may include the U.S. The Global Portfolio may also purchase and write options for hedging purposes and/or direct investment and invest in participatory notes (commonly known as “P-notes”) to take positions in certain foreign securities.

The Global Portfolio may invest up to 20% of its total assets in convertible and non-convertible debt securities rated below investment grade, also known as junk bonds, or unrated securities that the Investment Adviser has determined to be of comparable quality. The Global Portfolio may invest up to 100% of its assets in companies located in emerging markets.

The Investment Adviser selects portfolio securities by evaluating a company’s positioning and business model as well as its ability to grow and expand its activities or achieve a greater competitive advantage in cost/profitability and brand image leveraging. This evaluation by the Investment Adviser includes consideration of a company’s potential to maintain and grow long lived assets, while generating high returns on capital with operating predictability and transparency. The Investment Adviser also considers a company’s fundamentals by reviewing its balance sheets, corporate revenues, earnings and dividends. The Global Portfolio may invest in companies of any size, including small and medium-sized companies. Additionally, the Global Portfolio may participate in securities lending arrangements up to 33-1/3% of the securities in its portfolio with brokers, dealers, and financial institutions (but not individuals) in order to increase the return on its portfolio.

The Global Portfolio may invest indirectly in bitcoins exclusively through a Delaware statutory trust (“Grayscale Bitcoin Trust”) that offers exposure to bitcoin. Grayscale Bitcoin Trust offers shares on an ongoing basis through private placements pursuant to the exemption from registration provided by Rule 506(c) under Regulation D of the Securities Act of 1933, as amended. Bitcoins are a digital commodity that are not issued by a government, bank or central organization. Bitcoins exist on an online, peer-to-peer computer network (the “Bitcoin Network”) that hosts a public transaction ledger where bitcoin transfers are recorded (the “Blockchain”). Bitcoins have no physical existence beyond the record of transactions on the Blockchain. The Grayscale Bitcoin Trust invests principallyin bitcoins.

The Global Portfolio contributed a portion of its holdings in the Grayscale Bitcoin Trustto a wholly-owned and controlled subsidiary organized under the laws of the Cayman Islands (the “Cayman Subsidiary”). The Global Portfolio realized capital gain on the transfer to the extent the value of the transferred Grayscale Bitcoin Trust interest at the time of transfer exceeded its tax basis in the hands of the Global Portfolio.

The Global Portfolio is also the sole shareholder of a wholly owned subsidiary organized under Delaware law (the “Delaware Subsidiary”). The Global Portfolio contributed a portion of its holdings in the Grayscale Bitcoin Trust to the Delaware Subsidiary. Any net gains that the Delaware Subsidiary recognizes on future sales of the contributed Grayscale Bitcoin Trust shares will be subject to federal and state corporate income tax, but the dividends that the Delaware Subsidiary pays to the Global Portfolio (i.e., those gains, net of the tax paid and any other expenses of the Delaware Subsidiary, such as its management and advisory fees) will be eligible to be treated as “qualified dividend income” under the Internal Revenue Code. The Delaware Subsidiary and the Cayman Subsidiary are each referred to herein as a “Subsidiary” and collectively as “Subsidiaries.” Additional information regarding the tax treatment of the Fund is provided in the “Taxes” section of the SAI.

In the future, the Global Portfolio may seek to gain additional exposure to the Grayscale Bitcoin Trust that may not produce qualifying income for the Global Fund under the Internal Revenue Code. The Global Portfolio will not make any additional investments in the Grayscale Bitcoin Trust if as a result of such investment, its aggregate investment in the Grayscale Bitcoin Trust, either directly or through a Subsidiary, would be more than 15% of its assets at the time of the investment.

Each Subsidiary invests primarily in the Grayscale Bitcoin Trust. The Global Portfolio will invest in its Subsidiaries within the limitations of the federal tax laws, rules and regulations that apply to “regulated investment companies” (“RICs”) under Subchapter M, of Subtitle A, Chapter 1, of the Internal Revenue Code (“Subchapter M”). However, the Global Portfolio and each Subsidiary comply with the same fundamental investment restrictions on an aggregate basis, to the extent those restrictions are applicable to the investment activities of each Subsidiary. Each Subsidiary also complies with Section 17 of the Investment Company Act of 1940 (the “1940 Act”) relating to affiliated transactions and custody. Unlike the Global Fund, each Subsidiary does not, and will not, seek to qualify as a RIC. The Global Portfolio is the sole shareholder of each Subsidiary and does not expect shares of the Subsidiaries to be offered or sold to other investors.

Sell decisions are generally triggered by either adequate value being achieved, as determined by the Investment Adviser, or by an adverse change in a company’s operating performance or a deterioration of the company’s business model.  A sell trigger may also occur if the Investment Adviser discovers a new investment opportunity that it believes is more compelling and represents a greater risk reward profile than other investment(s) held by the Global Portfolio.

The Global Portfolio may maintain during a temporary period, which could be for a short period or a longer period lasting several years or more, of abnormal conditions, a significant portion of its total assets in cash and securities, generally considered to be cash and cash equivalents, including, but not limited to: high quality, U.S. short-term debt securities and money market instruments.  The Investment Adviser will invest in such short-term cash positions to the extent that the Investment Adviser is unable to find sufficient investments meeting its criteria and when the Investment Adviser believes the purchase of additional equity securities would not further the investment objective of the Global Portfolio during such periods of time.  Additionally, to respond to adverse market, economic, political or other conditions, which may persist for short or long periods of time, the Global Portfolio may invest up to 100% of its assets in the types of high quality, U.S. short-term debt securities and money market instruments described above.

If the market advances during periods when the Global Portfolio is holding a large cash position, the Portfolio may not participate as much as it would have if it had been more fully invested in securities.  In the aforementioned temporary defensive periods, the Investment Adviser believes that an additional amount of liquidity in the Global Portfolio is desirable both to meet operating requirements and to take advantage of new investment opportunities. When the Global Portfolio holds a significant portion of assets in cash and cash equivalents, it may not meet its investment objective.

Principal Investment Risks

The Global Portfolio’s investments, including common stocks, have inherent risks that could cause you to lose money.The principal risks of investing in the Global Fund, and indirectly the Global Portfolio, are listed below and could adversely affect the NAV, total return and value of the Global Fund, Global Portfolio and your investment.

ª Stock Market Risks: Stock mutual funds are subject to stock market risks and significant fluctuations in value. If the stock market declines in value, the Global Portfolio, and therefore the Global Fund, is likely to decline in value and you could lose money on your investment.

ª Stock Selection Risks: The portfolio securities selected by the Investment Adviser may decline in value or not increase in value when the stock market in general is rising and may fail to meet the Global Portfolio’s, and therefore the Global Fund’s, investment objective.

ª Counterparty Risks: Transactions involving a counterparty are subject to the credit risk of the counterparty. A Portfolio that enters into contracts with counterparties, such as repurchase or reverse repurchase agreements or over-the-counter (“OTC”) derivatives contracts, or that lends its securities run the risk that the counterparty will be unable or unwilling to make timely settlement payments or otherwise honor its obligations. If a counterparty fails to meet its contractual obligations, goes bankrupt, or otherwise experiences a business interruption, the Portfolio could suffer losses, including monetary losses, miss investment opportunities or be forced to hold investments it would prefer to sell. Counterparty risk is heightened during unusually adverse market conditions.

ª Liquidity Risks: The Investment Adviser may not be able to sell portfolio securities at an optimal time or price.

ª Small and Medium-Size Company Risks: The Global Portfolio may invest in the equity securities of small and medium-size companies. Small and medium-size companies often have narrower markets and more limited managerial and financial resources than do larger, more established companies. As a result, their performance can be more volatile and they face a greater risk of business failure, which could increase the volatility of the Global Portfolio’s assets.

ª Exchange-Traded Funds (ETFs) Risks: ETFs are registered investment companies whose shares are listed and traded on U.S. stock exchanges or otherwise traded in the over-the-counter market. In general, passively-managed ETFs seek to track a specified securities index or a basket of securities that an “index provider,” such as Standard & Poor’s, selects as representative of a market, market segment or industry sector. A leveraged ETF will engage in transactions and purchase instruments that give rise to forms of leverage, including, among others, the use of reverse repurchase agreements and other borrowings, the investment of collateral from loans of portfolio securities, the use of when issued, delayed-delivery or forward commitment transactions or short sales.  To the extent a fund invests in ETFs that achieve leveraged exposure to their underlying indexes through the use of derivative instruments, the fund will indirectly be subject to leveraging risk.A passively-managed ETF is designed so that its performance will correspond closely with that of the index it tracks. As a shareholder in an ETF, the Global Portfolio will bear its pro rata portion of an ETF’s expenses, including advisory fees, in addition to its own expenses.

ª Foreign Securities Risks: The Global Portfolio may invest in foreign securities directly or through ADRs, GDRs and IDRs. Foreign securities can carry higher returns but involve more risks than those associated with U.S. investments. Additional risks associated with investment in foreign securities include currency fluctuations, political and economic instability, differences in financial reporting standards and less stringent regulation of securities markets.

ª Interest Rate Risk: The risk that when interest rates increase, fixed-income securities held by the Global Portfolio will decline in value. Long-term fixed-income securities will normally have more price volatility because of this risk than short-term fixed-income securities. It is likely there will be less governmental action in the near future to maintain low interest rates. The negative impact on fixed income securities from the resulting rate increases for that and other reasons could be swift and significant.

ª Leveraging Risks: Investments in derivative instruments may give rise to a form of leverage. The Investment Adviser may engage in speculative transactions, which involve substantial risk and leverage. The use of leverage by the Investment Adviser may increase the volatility of the Global Portfolio. These leveraged instruments may result in losses to the Global Portfolio or may adversely affect the Global Portfolio’s NAV or total return, because instruments that contain leverage are more sensitive to changes in interest rates. The Global Portfolio may also have to sell assets at inopportune times to satisfy its obligations in connection with such transactions.

ª Option Transaction Risks: Purchasing and writing put and call options are highly specialized activities and entail greater than ordinary investment risks. The successful use of options depends in part on the ability of the Investment Adviser to manage future price fluctuations and the degree of correlation between the options and securities markets. By writing put options on equity securities, the Global Portfolio gives up the opportunity to benefit from potential increases in the value of the common stocks above the strike prices of the written put options, but continues to bear the risk of declines in the value of its common stock portfolio. The Global Portfolio will receive a premium from writing a covered call option that it retains whether or not the option is exercised. The premium received from the written options may not be sufficient to offset any losses sustained from the volatility of the underlying equity securities over time.

ª Below Investment Grade Debt Securities Risks: Generally, below investment grade debt securities, i.e., junk bonds, are subject to greater credit risk, price volatility and risk of loss than investment grade securities. Junk bonds are considered to be speculative in nature.

ª Convertible Securities Risks: Convertible securities are subject to the risks affecting both equity and fixed income securities, including market, credit, liquidity and interest rate risk.

ª Participatory Notes Risks: The return on a participatory note (“P-note”) is linked to the performance of the issuers of the underlying securities. In addition, P-notes are subject to liquidity risk.

ª Emerging Markets Risks:The risk that the securities markets of emerging countries are less liquid, are especially subject to greater price volatility, have smaller market capitalizations, have less government regulation and are not subject to as extensive and frequent accounting, financial and other reporting requirements as the securities markets of more developed countries as have historically been the case.

ª Derivatives Risks: The Global Portfolio’s investments in P-notes and other derivative instruments may result in loss. Derivative instruments may be illiquid, difficult to price and leveraged so that small changes may produce disproportionate losses to the Global Portfolio.

ª Management Risks: There is no guarantee that the Global Fund will meet its investment objective. The Investment Adviser does not guarantee the performance of the Global Fund, nor can it assure you that the market value of your investment will not decline.

ª Bitcoin Risks:The value of the Global Portfolio’s investment in the Grayscale Bitcoin Trust directly and indirectly through its Subsidiaries is subject to fluctuations in the value of bitcoins.  The value of bitcoins is determined by the supply of and demand for bitcoins in the global market for the trading of bitcoins, which consists of transactions on electronic bitcoin exchanges (“Bitcoin Exchanges”). Pricing on Bitcoin Exchanges and other venues can be volatile and can adversely affect the value of the Grayscale Bitcoin Trust. Currently, there is relatively small use of bitcoins in the retail and commercial marketplace in comparison to the relatively large use of bitcoins by speculators, thus contributing to price volatility that could adversely affect the Global Portfolio’s investment in the Grayscale Bitcoin Trust. Bitcoin transactions are irrevocable, and stolen or incorrectly transferred bitcoins may be irretrievable. As a result, any incorrectly executed bitcoin transactions could adversely affect the value of the Global Portfolio’s investment in the Grayscale Bitcoin Trust. Shares of the Grayscale Bitcoin Trust may trade at a premium or discount to the net asset value of the Grayscale Bitcoin Trust.

ª Regulatory Risk: Bitcoin is generally not subject to the same degree of regulation as are registered U.S. securities. The reporting, accounting and auditing standards for Bitcoin may differ from the standards for registered U.S. securities. Furthermore, countries, including the U.S., may in the future curtail or outlaw the acquisition, use or redemption of bitcoins.

ª Volatility Risk: The Portfolio may have investments, including but not limited to Bitcoin, that appreciate or depreciate significantly in value over short periods of time. This may cause the Portfolio’s net asset value per share to experience significant increases or declines in value over short periods of time.

ª Valuation Risk: The sales price the Portfolio could receive for any particular portfolio investment may differ from the Portfolio’s valuation of the investment, particularly for securities or other investments, such as Bitcoin, that trade in thin or volatile markets or that are valued using a fair value methodology. Valuation may be more difficult in times of market turmoil since many investors and market makers may be reluctant to purchase complex instruments or quote prices for them. The Portfolio’s ability to value its investments may be impacted by technological issues and/or errors by pricing services or other third party service providers. Shares of Grayscale Bitcoin Trust are intended to reflect the price of bitcoin assets, less fees and expenses, and the shares currently trade at a substantial premium to the net asset value of such assets. As such, the price of Grayscale Bitcoin Trust may go down even if the price of the underlying asset, bitcoin, remains unchanged. Additionally, shares that trade at a premium mean that an investor who purchases $1 of a portfolio will actually own less than $1 in assets.

ª Subsidiary Risks: By investing in its Subsidiaries, the Global Portfolio is indirectly exposed to the risks associated with each Subsidiary’s investments. Those investments held by the Subsidiaries are generally similar to the investments that are permitted to be held by the Global Portfolio and are subject to the same risks that would apply to similar investments if held directly by the Global Portfolio. Each Subsidiary is not registered under the 1940 Act and, unless otherwise noted in this Prospectus, is not subject to all the investor protections of the 1940 Act. In addition, changes in the laws of the United States, Delaware and/or the Cayman Islands could result in the inability of the Global Portfolio and/or its Subsidiaries to continue to operate and could adversely affect the Global Fund’s performance.

ª Tax Risks: In order to qualify as a RIC, the Global Fund must meet certain requirements regarding the source of its income, the diversification of its assets and the distribution of its income. Under the test regarding the source of a RIC’s income, at least 90% of the gross income of the RIC each year must be qualifying income, which consists of dividends, interest, gains on investments in securities and certain other categories of investment income. It appears to be the position of the Internal Revenue Service (“IRS”) that gain realized on bitcoin investments such as investments in the Grayscale Bitcoin Trust will not be qualifying income. The Global Portfolio’s investment in each Subsidiary is expected to provide the Global Fund with exposure to such bitcoin investments within the limitations of the Internal Revenue Code for qualification as a RIC because, under applicable tax rules, the income earned by each Subsidiary will flow out as qualifying income for the RIC even though the income would not be qualifying income if earned directly by the RIC or directly by an entity classified as a partnership for federal income tax purposes, such as the Global Portfolio, in which the RIC invests. There is a risk, however, that the IRS might assert that the income derived from the Global Portfolio’s investment in a Subsidiary will not be considered qualifying income. If the Global Fund were to fail to qualify as a RIC and became subject to federal income tax, shareholders of the Global Fund would be subject to diminished returns. Changes in the laws of the United States, Delaware and/or the Cayman Islands could result in the inability of the Global Portfolio and/or its Subsidiaries to operate as described in this Prospectus and could adversely affect the Global Fund. For example, the Cayman Islands does not currently impose any income, corporate or capital gains tax or withholding tax on the Cayman Subsidiary. If Cayman Islands law changes such that the Cayman Subsidiary must pay Cayman Islands taxes, Global Fund shareholders would likely suffer decreased investment returns.

Who may want to invest?

The Global Fund may be appropriate for investors who:

ª wish to invest for the long-term;

ª want to diversify their portfolios;

ª want to allocate some portion of their long-term investments to value equity investing;

ª are willing to accept the volatility associated with equity and Bitcoin investing; and

ª are comfortable with the risks described herein.

Performance

The bar chart and table shown below illustrate the variability of the Global Fund’s returns. The bar chart indicates the risks of investing in the Global Fund by showing the changes in the Global Fund’s performance from year to year (on a calendar year basis). The table shows how the Global Fund’s average annual returns, before and after taxes, (after taking into account any sales charges) compare with those of the S&P^® 500 Index and the MSCI ACWI (All Country World Index) Index (“MSCI ACWI Index”), which represent broad measures of market performance. The past performance of the Global Fund, before and after taxes, is not necessarily an indication of how the Global Fund or the Global Portfolio will perform in the future. Performance reflects fee waivers in effect, if fee waivers were not in place, the Global Fund’s performance would be reduced. The bar chart shows how the performance of Advisor Class A shares (the Class with the longest period of annual returns) has varied from year to year. The returns for Advisor Class C shares were different than the returns shown below because each Class of shares has different expenses. Updated performance information is available on the Fund’s website at http://www.kineticsfunds.com or by calling the Fund toll-free at (800) 930-3828.

Sales charges are not reflected in the bar chart. If these amounts were reflected, returns would be less than those shown.

The Global Fund – Advisor Class A Calendar Year Returns as of 12/31

Best Quarter:	2009	Q2	38.66%
Worst Quarter:	2018	Q4	-18.23%

Average Annual Total Returns as of 12/31/2018

The after-tax returns for the Global Fund’s Advisor Class A shares as shown in the following table are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.Your actual after-tax returns depend on your tax situation and may differ from those shown. If you own Fund shares in a tax-deferred account, such as a 401(k) plan or an individual retirement account (“IRA”), the information on after-tax returns is not relevant to your investment.After-tax returns are shown for Advisor Class A shares only. After-tax returns for Advisor Class C shares will differ.The Return After Taxes on Distributions and Sale of Fund Shares is higher than other return figures when a capital loss occurs upon the redemption of Fund shares.

Average Annual Total Returns - Advisor A & C Prospectus - Kinetics Global Fund - Advisor A & C Prospectus	Label	1 Year		5 Years		10 Years		Since Inception		Inception Date
S&P 500® Index (reflects no deduction for fees, expenses, or taxes)	S&P® 500 Index (reflects no deductions for fees, expenses or taxes)	(4.38%)		8.49%		13.12%		7.74%		May 19, 2008
MSCI ACWI Index (reflects no deductions for fees, expenses or taxes)	MSCI ACWI Index (reflects no deductions for fees, expenses or taxes)	(9.42%)		4.26%		9.46%		3.46%		May 19, 2008
Advisor Class A	The Global Fund (KGLAX) Class A Return Before Taxes	(28.14%)		(1.35%)		9.58%		2.63%		May 19, 2008
Advisor Class A | After Taxes on Distributions	The Global Fund (KGLAX) Class A Return After Taxes on Distributions	(28.15%)		(1.82%)		9.30%		2.36%
Advisor Class A | After Taxes on Distributions and Sales	The Global Fund (KGLAX) Class A Return After Taxes on Distributions and Sale of Fund Shares	(16.65%)	[1]	(0.99%)	[1]	8.00%	[1]	2.13%	[1]
Advisor Class C	The Global Fund (KGLCX) Class C Return Before Taxes	(24.95%)		(0.94%)		9.43%		2.51%		May 19, 2008

Advisor A & C Prospectus | Kinetics Paradigm Fund

Kinetics Paradigm Fund

Investment Objective

The investment objective of the Paradigm Fund is long-term growth of capital.

Fees and Expenses of the Fund

This table describes the fees and expenses you may pay if you buy and hold shares of the Paradigm Fund. You may qualify for sales charge discounts for Advisor Class A shares if you and your family invest, or agree to invest in the future, at least $50,000 in Advisor Class A shares of the Kinetics Funds. More information about these and other discounts is available from your financial professional and in the sections titled “Description of Advisor Classes” beginning on page 105 of the Fund’s prospectus, in Appendix A to this Prospectus - Financial Intermediary Sales Charge Variations, and “Purchasing Shares” beginning on page 58 of the Fund’s statement of additional information.

SHAREHOLDER FEES (fees paid directly from your investment)

Shareholder Fees - Advisor A & C Prospectus - Advisor A & C Prospectus - Kinetics Paradigm Fund		Advisor Class A	Advisor Class C
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price)	[1]	5.75%	none
Maximum Deferred Sales Charge (as a percentage)	[1]	none	1.00%
Redemption Fee (as a percentage of Amount Redeemed)	[1]	(2.00%)	(2.00%)

ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses - Advisor A & C Prospectus - Advisor A & C Prospectus - Kinetics Paradigm Fund		Advisor Class A	Advisor Class C
Management Fees (as a percentage of Assets)	[1]	1.25%	1.25%
Distribution and Service (12b-1) Fees	[2]	0.50%	1.00%
Other Expenses (as a percentage of Assets):		0.23%	0.23%
Expenses (as a percentage of Assets)		1.98%	2.48%
Fee Waiver or Reimbursement	[3]	(0.09%)	(0.09%)
Net Expenses (as a percentage of Assets)		1.89%	2.39%

Example.

This Example is intended to help you compare the cost of investing in the Paradigm Fund with the cost of investing in other mutual funds. This Example assumes that you invest $10,000 in the Paradigm Fund for the time periods indicated and then redeem all of your shares at the end of these periods. The Example also assumes that your investment has a 5% return each year and that the Paradigm Fund’s operating expenses remain the same (taking into account the expense limitation only in the first year).Although your actual costs may be higher or lower, based on these assumptions your cost for the Paradigm Fund would be:

Although your actual costs may be higher or lower, based on these assumptions your cost for the Paradigm Fund would be:

Expense Example - Advisor A & C Prospectus - Advisor A & C Prospectus - Kinetics Paradigm Fund - USD ($)	Expense Example, with Redemption, 1 Year	Expense Example, with Redemption, 3 Years	Expense Example, with Redemption, 5 Years	Expense Example, with Redemption, 10 Years
Advisor Class A	756	1,152	1,573	2,742
Advisor Class C	345	764	1,312	2,809

Expense Example, No Redemption - Advisor A & C Prospectus	Expense Example, No Redemption, 1 Year	Expense Example, No Redemption, 3 Years	Expense Example, No Redemption, 5 Years	Expense Example, No Redemption, 10 Years
Advisor A & C Prospectus | Kinetics Paradigm Fund | Advisor Class C | USD ($)	242	764	1,312	2,809

Portfolio Turnover.

The Paradigm Portfolio pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the Example, affect the Paradigm Portfolio’s, and therefore the Paradigm Fund’s, performance. During the most recent fiscal year, the Paradigm Portfolio’s portfolio turnover rate was 3% of the average value of its portfolio.

Principal Investment Strategy

The Paradigm Fund is a non-diversified fund that invests all of its investable assets in the Paradigm Portfolio, a series of Kinetics Portfolios Trust. Under normal circumstances, the Paradigm Portfolio invests at least 65% of its net assets in common stocks, exchange traded funds (“ETFs”), convertible securities, warrants, and other equity securities having the characteristics of common stocks (such as American Depositary Receipts (“ADRs”), Global Depositary Receipts (“GDRs”) and International Depositary Receipts (“IDRs”)) of U.S. and foreign companies that the Investment Adviser believes are undervalued, that have, or are expected to soon have, high returns on equity and that are well positioned to reduce their costs, extend the reach of their distribution channels and experience significant growth in their assets or revenues. The Paradigm Portfolio will carry out its investment strategy by regarding the investments as representing fractional ownership in the underlying companies’ assets. This will allow the Paradigm Portfolio, and therefore the Paradigm Fund, to attempt to achieve its investment objective by acting as a classic value investor seeking high returns on equity, an intrinsic characteristic of the investment, not a reappraisal of a company’s stock value by the market, an external factor. The Paradigm Portfolio may also purchase and write options for hedging purposes and/or direct investment.

The Paradigm Portfolio may invest up to 20% of its total assets in convertible and non-convertible debt securities rated below investment grade, also known as junk bonds, or unrated securities that the Investment Adviser has determined to be of comparable quality. The Paradigm Portfolio may invest up to 100% of its total assets in companies located in emerging markets.

The Investment Adviser selects portfolio securities by evaluating a company’s positioning and traditional business lines as well as its ability to expand its activities or achieve competitive advantage in cost/profitability and brand image leveraging. The Investment Adviser also considers a company’s fundamentals by reviewing its balance sheets, corporate revenues, earnings and dividends. The Paradigm Portfolio may invest in companies of any size, including small and medium-size companies. Additionally, the Paradigm Portfolio may participate in securities lending arrangements up to 33-1/3% of the securities in its portfolio with brokers, dealers, and financial institutions (but not individuals) in order to increase the return on its portfolio.

The Paradigm Portfolio may invest indirectly in bitcoins exclusively through a Delaware statutory trust (“Grayscale Bitcoin Trust”) that offers exposure to bitcoin. Grayscale Bitcoin Trust offers shares on an ongoing basis through private placements pursuant to the exemption from registration provided by Rule 506(c) under Regulation D of the Securities Act of 1933, as amended. Bitcoins are a digital commodity that are not issued by a government, bank or central organization. Bitcoins exist on an online, peer-to-peer computer network (the “Bitcoin Network”) that hosts a public transaction ledger where bitcoin transfers are recorded (the “Blockchain”). Bitcoins have no physical existence beyond the record of transactions on the Blockchain. The Grayscale Bitcoin Trust invests principallyin bitcoins.

The Paradigm Portfolio contributed a portion of its holdings in the Grayscale Bitcoin Trustto a wholly-owned and controlled subsidiary organized under the laws of the Cayman Islands (the “Cayman Subsidiary”). The Paradigm Portfolio realized capital gain on the transfer to the extent the value of the transferred Grayscale Bitcoin Trust interest at the time of transfer exceeded its tax basis in the hands of the Paradigm Portfolio.

The Paradigm Portfolio is also the sole shareholder of a wholly owned subsidiary organized under Delaware law (the “Delaware Subsidiary”). The Paradigm Portfolio contributed a portion of its holdings in the Grayscale Bitcoin Trust to the Delaware Subsidiary. Any net gains that the Delaware Subsidiary recognizes on future sales of the contributed Grayscale Bitcoin Trust shares will be subject to federal and state corporate income tax, but the dividends that the Delaware Subsidiary pays to the Paradigm Portfolio (i.e., those gains, net of the tax paid and any other expenses of the Delaware Subsidiary, such as its management and advisory fees) will be eligible to be treated as “qualified dividend income” under the Internal Revenue Code. The Delaware Subsidiary and the Cayman Subsidiary are each referred to herein as a “Subsidiary” and collectively as “Subsidiaries.” Additional information regarding the tax treatment of the Fund is provided in the “Taxes” section of the SAI.

In the future, the Paradigm Portfolio may seek to gain additional exposure to the Grayscale Bitcoin Trust that may not produce qualifying income for the Paradigm Fund under the Internal Revenue Code. The Paradigm Portfolio will not make any additional investments in the Grayscale Bitcoin Trust if as a result of such investment, its aggregate investment in the Grayscale Bitcoin Trust, either directly or through a Subsidiary, would be more than 15% of its assets at the time of the investment.

Each Subsidiary invests primarily in the Grayscale Bitcoin Trust. The Paradigm Portfolio will invest in its Subsidiaries within the limitations of the federal tax laws, rules and regulations that apply to “regulated investment companies” (“RICs”) under Subchapter M of Subtitle A, Chapter 1, of the Internal Revenue Code (“Subchapter M”). However, the Paradigm Portfolio and each Subsidiary comply with the same fundamental investment restrictions on an aggregate basis, to the extent those restrictions are applicable to the investment activities of each Subsidiary. Each Subsidiary also complies with Section 17 of the Investment Company Act of 1940 (the “1940 Act”) relating to affiliated transactions and custody. Unlike the Paradigm Fund, each Subsidiary does not, and will not, seek to qualify as a RIC. The Paradigm Portfolio is the sole shareholder of each Subsidiary and does not expect shares of the Subsidiaries to be offered or sold to other investors.

Sell decisions are generally triggered by either adequate value being achieved, as determined by the Investment Adviser, or by an adverse change in a company’s operating performance or a deterioration of the company’s business model.  A sell trigger may also occur if the Investment Adviser discovers a new investment opportunity that it believes is more compelling and represents a greater risk reward profile than other investment(s) held by the Paradigm Portfolio.

The Paradigm Portfolio may maintain during a temporary period, which could be for a short period or a longer period lasting several years or more, of abnormal conditions, a significant portion of its total assets in cash and securities, generally considered to be cash and cash equivalents, including, but not limited to: high quality, U.S. short-term debt securities and money market instruments.  The Investment Adviser will invest in such short-term cash positions to the extent that the Investment Adviser is unable to find sufficient investments meeting its criteria and when the Investment Adviser believes the purchase of additional equity securities would not further the investment objective of the Paradigm Portfolio during such periods of time.  Additionally, to respond to adverse market, economic, political or other conditions, which may persist for short or long periods of time, the Paradigm Portfolio may invest up to 100% of its assets in the types of high quality, U.S. short-term debt securities and money market instruments described above.

If the market advances during periods when the Paradigm Portfolio is holding a large cash position, the Portfolio may not participate as much as it would have if it had been more fully invested in securities.  In the aforementioned temporary defensive periods, the Investment Adviser believes that an additional amount of liquidity in the Paradigm Portfolio is desirable both to meet operating requirements and to take advantage of new investment opportunities. When the Paradigm Portfolio holds a significant portion of assets in cash and cash equivalents, it may not meet its investment objective.

Principal Investment Risks

Investing in common stocks has inherent risks that could cause you to lose money.The principal risks of investing in the Paradigm Fund, and indirectly the Paradigm Portfolio, are listed below and could adversely affect the NAV, total return and value of the Paradigm Fund, Paradigm Portfolio and your investment.

ª Stock Market Risks: Stock mutual funds are subject to stock market risks and significant fluctuations in value. If the stock market declines in value, the Paradigm Portfolio, and therefore the Paradigm Fund, is likely to decline in value and you could lose money on your investment.

ª Stock Selection Risks: The portfolio securities selected by the Investment Adviser may decline in value or not increase in value when the stock market in general is rising and may fail to meet the Paradigm Portfolio’s, and therefore the Paradigm Fund’s, investment objective.

ª Liquidity Risks: The Investment Adviser may not be able to sell portfolio securities at an optimal time or price.

ª Small and Medium-Size Company Risks: The Paradigm Portfolio may invest in the equity securities of small and medium-size companies. Small and medium-size companies often have narrower markets and more limited managerial and financial resources than do larger, more established companies. As a result, their performance can be more volatile and they face a greater risk of business failure, which could increase the volatility of the Paradigm Portfolio’s assets.

ª Exchange-Traded Funds (ETFs) Risks: ETFs are registered investment companies whose shares are listed and traded on U.S. stock exchanges or otherwise traded in the over-the-counter market. In general, passively-managed ETFs seek to track a specified securities index or a basket of securities that an “index provider,” such as Standard & Poor’s, selects as representative of a market, market segment or industry sector. A passively-managed ETF is designed so that its performance will correspond closely with that of the index it tracks. A leveraged ETF will engage in transactions and purchase instruments that give rise to forms of leverage, including, among others, the use of reverse repurchase agreements and other borrowings, the investment of collateral from loans of portfolio securities, the use of when issued, delayed-delivery or forward commitment transactions or short sales.  To the extent a fund invests in ETFs that achieve leveraged exposure to their underlying indexes through the use of derivative instruments, the fund will indirectly be subject to leveraging risk.As a shareholder in an ETF, the Paradigm Portfolio will bear its pro rata portion of an ETF’s expenses, including advisory fees, in addition to its own expenses.

ª Foreign Securities Risks: The Paradigm Portfolio may invest in foreign securities directly or through ADRs, GDRs and IDRs. Foreign securities can carry higher returns but involve more risks than those associated with U.S. investments. Additional risks associated with investment in foreign securities include currency fluctuations, political and economic instability, differences in financial reporting standards and less stringent regulation of securities markets.

ª Emerging Markets Risks: The risks of foreign investments are usually much greater for the emerging markets. Investments in emerging markets may be considered speculative.

ª Non-Diversification Risks:As a non-diversified investment company, the Paradigm Portfolio can invest a large percentage of its assets in a small number of issuers. As a result, a change in the value of any one investment may affect the overall value of the Paradigm Portfolio’s shares, and therefore the Paradigm Fund’s shares, more than shares of a diversified mutual fund that holds more investments.

ª Interest Rate Risk: The risk that when interest rates increase, fixed-income securities held by the Paradigm Portfolio will decline in value. Long-term fixed-income securities will normally have more price volatility because of this risk than short-term fixed-income securities. It is likely there will be less governmental action in the near future to maintain low interest rates. The negative impact on fixed income securities from the resulting rate increases for that and other reasons could be swift and significant.

ª Leveraging Risks: Investments in derivative instruments may give rise to a form of leverage. The Investment Adviser may engage in speculative transactions, which involve substantial risk and leverage. The use of leverage by the Investment Adviser may increase the volatility of the Paradigm Portfolio. These leveraged instruments may result in losses to the Paradigm Portfolio or may adversely affect the Paradigm Portfolio’s NAV or total return, because instruments that contain leverage are more sensitive to changes in interest rates. The Paradigm Portfolio may also have to sell assets at inopportune times to satisfy its obligations in connection with such transactions.

ª Option Transaction Risks: Purchasing and writing put and call options are highly specialized activities and entail greater than ordinary investment risks. The successful use of options depends in part on the ability of the Investment Adviser to manage future price fluctuations and the degree of correlation between the options and securities markets. By writing put options on equity securities, the Paradigm Portfolio gives up the opportunity to benefit from potential increases in the value of the common stocks above the strike prices of the written put options, but continues to bear the risk of declines in the value of its common stock portfolio. The Paradigm Portfolio will receive a premium from writing a covered call option that it retains whether or not the option is exercised. The premium received from the written options may not be sufficient to offset any losses sustained from the volatility of the underlying equity securities over time.

ª Below Investment Grade Debt Securities Risks: Generally, below investment grade debt securities, i.e., junk bonds, are subject to greater credit risk, price volatility and risk of loss than investment grade securities. Junk bonds are considered to be speculative in nature.

ª Convertible Securities Risks: Convertible securities are subject to the risks affecting both equity and fixed income securities, including market, credit, liquidity and interest rate risk.

ª Management Risks: There is no guarantee that the Paradigm Fund will meet its investment objective. The Investment Adviser does not guarantee the performance of the Paradigm Fund, nor can it assure you that the market value of your investment will not decline.

ª Bitcoin Risks: The value of the Paradigm Portfolio’s investment in the Grayscale Bitcoin Trust directly and indirectly through its Subsidiaries is subject to fluctuations in the value of bitcoins.  The value of bitcoins is determined by the supply of and demand for bitcoins in the global market for the trading of bitcoins, which consists of transactions on electronic bitcoin exchanges (“Bitcoin Exchanges”). Pricing on Bitcoin Exchanges and other venues can be volatile and can adversely affect the value of the Grayscale Bitcoin Trust. Currently, there is relatively small use of bitcoins in the retail and commercial marketplace in comparison to the relatively large use of bitcoins by speculators, thus contributing to price volatility that could adversely affect the Paradigm Portfolio’s investment in the Grayscale Bitcoin Trust. Bitcoin transactions are irrevocable, and stolen or incorrectly transferred bitcoins may be irretrievable. As a result, any incorrectly executed bitcoin transactions could adversely affect the value of the Paradigm Portfolio’s investment in the Grayscale Bitcoin Trust. Shares of the Grayscale Bitcoin Trust may trade at a premium or discount to the net asset value of the Grayscale Bitcoin Trust.

ª Regulatory Risk: Bitcoin is generally not subject to the same degree of regulation as are registered U.S. securities. The reporting, accounting and auditing standards for Bitcoin may differ from the standards for registered U.S. securities. Furthermore, countries, including the U.S., may in the future curtail or outlaw the acquisition, use or redemption of bitcoins.

ª Volatility Risk: The Portfolio may have investments, including but not limited to Bitcoin, that appreciate or depreciate significantly in value over short periods of time. This may cause the Portfolio’s net asset value per share to experience significant increases or declines in value over short periods of time.

ª Valuation Risk: The sales price the Portfolio could receive for any particular portfolio investment may differ from the Portfolio’s valuation of the investment, particularly for securities or other investments, such as Bitcoin, that trade in thin or volatile markets or that are valued using a fair value methodology. Valuation may be more difficult in times of market turmoil since many investors and market makers may be reluctant to purchase complex instruments or quote prices for them. The Portfolio’s ability to value its investments may be impacted by technological issues and/or errors by pricing services or other third party service providers. Shares of Grayscale Bitcoin Trust are intended to reflect the price of bitcoin assets, less fees and expenses, and the shares currently trade at a substantial premium to the net asset value of such assets. As such, the price of Grayscale Bitcoin Trust may go down even if the price of the underlying asset, bitcoin, remains unchanged. Additionally, shares that trade at a premium mean that an investor who purchases $1 of a portfolio will actually own less than $1 in assets.

ª Subsidiary Risks: By investing in its Subsidiaries, the Paradigm Portfolio is indirectly exposed to the risks associated with each Subsidiary’s investments. Those investments held by the Subsidiaries are generally similar to the investments that are permitted to be held by the Paradigm Portfolio and are subject to the same risks that would apply to similar investments if held directly by the Paradigm Portfolio. Each Subsidiary is not registered under the 1940 Act and, unless otherwise noted in this Prospectus, is not subject to all the investor protections of the 1940 Act. In addition, changes in the laws of the United States, Delaware and/or the Cayman Islands could result in the inability of the Paradigm Portfolio and/or its Subsidiaries to continue to operate and could adversely affect the Paradigm Fund’s performance.

ª Tax Risks: In order to qualify as a RIC, the Paradigm Fund must meet certain requirements regarding the source of its income, the diversification of its assets and the distribution of its income. Under the test regarding the source of a RIC’s income, at least 90% of the gross income of the RIC each year must be qualifying income, which consists of dividends, interest, gains on investments in securities and certain other categories of investment income. It appears to be the position of the Internal Revenue Service (“IRS”) that gain realized on bitcoin investments such as investments in the Grayscale Bitcoin Trust will not be qualifying income. The Paradigm Portfolio’s investment in each Subsidiary is expected to provide the Paradigm Fund with exposure to such bitcoin investments within the limitations of the Internal Revenue Code for qualification as a RIC because, under applicable tax rules, the income earned by each Subsidiary will flow out as qualifying income for the RIC even though the income would not be qualifying income if earned directly by the RIC or directly by an entity classified as a partnership for federal income tax purposes, such as the Paradigm Portfolio, in which the RIC invests. There is a risk, however, that the IRS might assert that the income derived from the Paradigm Portfolio’s investment in a Subsidiary will not be considered qualifying income. If the Paradigm Fund were to fail to qualify as a RIC and became subject to federal income tax, shareholders of the Paradigm Fund would be subject to diminished returns. Changes in the laws of the United States, Delaware and/or the Cayman Islands could result in the inability of the Paradigm Portfolio and/or its Subsidiaries to operate as described in this Prospectus and could adversely affect the Paradigm Fund. For example, the Cayman Islands does not currently impose any income, corporate or capital gains tax or withholding tax on the Cayman Subsidiary. If Cayman Islands law changes such that the Cayman Subsidiary must pay Cayman Islands taxes, Paradigm Fund shareholders would likely suffer decreased investment returns.

ª Sector Concentration Risk: Although the Paradigm Portfolio will not concentrate its investments in any industries, the Paradigm Portfolio may, at certain times, have concentrations in one or more sectors which may cause the Paradigm Portfolio to be more sensitive to economic changes or events occurring in those sectors. As of December 31, 2018, the Portfolio had 37.9% invested in the Petroleum and Gas sector.

ª Petroleum and Gas Sector Risk: The profitability of companies in the oil and gas industry is related to worldwide energy prices, exploration costs and production spending. Companies in the oil and gas industry may be at risk for environmental damage claims and other types of litigation. Companies in the oil and gas industry may be adversely affected by: natural disasters or other catastrophes; changes in exchange rates or interest rates; prices for competitive energy services, economic conditions, tax treatment, or government regulation; government intervention; negative public perception; or unfavorable events in the regions where companies operate (e.g., expropriation, nationalization, confiscation of assets and property, imposition of restrictions on foreign investments or repatriation of capital, military coups, social or political unrest, violence or labor unrest). Companies in the oil and gas industry may have significant capital investments in, or engage in transactions involving, emerging market countries, which may heighten these risks.

Who may want to invest?

The Paradigm Fund may be appropriate for investors who:

ª wish to invest for the long-term;

ª want to diversify their portfolios;

ª want to allocate some portion of their long-term investments to equity investing;

ª are willing to accept the volatility associated with equity and Bitcoin investing; and

ª are comfortable with the risks described herein.

Performance

The bar chart and table shown below illustrate the variability of the Paradigm Fund’s returns. The bar chart indicates the risks of investing in the Paradigm Fund by showing the changes in the Paradigm Fund’s performance from year to year (on a calendar year basis). The table shows how the Paradigm Fund’s average annual returns, before and after taxes, (after taking into account any sales charges) compare with those of the S&P 500^® Index and the MSCI ACWI (All Country World Index) Index (“MSCI ACWI Index”), which represent broad measures of market performance. The past performance of the Paradigm Fund, before and after taxes, is not necessarily an indication of how the Paradigm Fund or the Paradigm Portfolio will perform in the future. Performance reflects fee waivers in place. If fee waivers were not in place, the Paradigm Fund’s performance would be reduced. The bar chart shows how the performance of Advisor Class A shares (the Class with the longest period of annual returns) has varied from year to year. The returns for Advisor Class C shares were different than the returns shown below because each Class of shares has different expenses. Updated performance information is available on the Fund’s website at http://www.kineticsfunds.com or by calling the Fund toll-free at (800) 930-3828.

Sales charges are not reflected in the bar chart. If these amounts were reflected, returns would be less than those shown.

The Paradigm Fund – Advisor Class A Calendar Year Returns as of 12/31

Best Quarter:	2009	Q2	32.10%
Worst Quarter:	2018	Q4	-22.96%

Average Annual Total Returns as of 12/31/2018

The after-tax returns for the Paradigm Fund’s Advisor Class A shares as shown in the following table are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.Your actual after-tax returns depend on your tax situation and may differ from those shown. If you own Fund shares in a tax-deferred account, such as a 401(k) plan or an individual retirement account (“IRA”), the information on after-tax returns is not relevant to your investment.After-tax returns are shown for Advisor Class A shares only. After-tax returns for Advisor Class C shares will differ.The Return After Taxes on Distributions and Sale of Fund Shares is higher than other return figures when a capital loss occurs upon the redemption of Fund shares.

Average Annual Total Returns - Advisor A & C Prospectus - Kinetics Paradigm Fund - Advisor A & C Prospectus	Label	1 Year		5 Years		10 Years		Since Inception	[1]	Inception Date
Advisor Class A	The Paradigm Fund (KNPAX) Class A Return Before Taxes	(11.21%)		4.34%		11.77%		8.66%		Apr. 26, 2001
Advisor Class A | After Taxes on Distributions	The Paradigm Fund (KNPAX) Class A Return After Taxes on Distributions	(13.27%)		3.85%		11.45%		8.43%
Advisor Class A | After Taxes on Distributions and Sales	The Paradigm Fund (KNPAX) Class A Return After Taxes on Distributions and Sale of Fund Shares	(5.17%)	[2]	3.37%	[2]	9.84%	[2]	7.39%	[2]
Advisor Class A | S&P 500® Index (reflects no deduction for fees, expenses, or taxes)	S&P 500® Index (reflects no deductions for fees, expenses or taxes)	(4.38%)		8.49%		13.12%		6.19%		Apr. 26, 2001
Advisor Class A | MSCI ACWI Index (reflects no deductions for fees, expenses or taxes)	MSCI ACWI Index (reflects no deductions for fees, expenses or taxes)	(9.42%)		4.26%		9.46%		5.07%		Apr. 26, 2001
Advisor Class C	The Paradigm Fund (KNPCX) Class C Return Before Taxes	(7.11%)		5.06%		11.86%		9.01%		Jun. 28, 2002
Advisor Class C | S&P 500® Index (reflects no deduction for fees, expenses, or taxes)	S&P 500® Index (reflects no deductions for fees, expenses or taxes)	(4.38%)		8.49%		13.12%		7.97%		Jun. 28, 2002
Advisor Class C | MSCI ACWI Index (reflects no deductions for fees, expenses or taxes)	MSCI ACWI Index (reflects no deductions for fees, expenses or taxes)	(9.42%)		4.26%		9.46%		6.67%		Jun. 28, 2002

Advisor A & C Prospectus | Kinetics Medical Fund

Kinetics Medical Fund

Investment Objective

The investment objective of the Medical Fund is long-term growth of capital. The Medical Fund is the sole “feeder fund” to The Medical Portfolio, a series of Kinetics Portfolios Trust.

Fees and Expenses of the Fund

This table describes the fees and expenses you may pay if you buy and hold shares of the Medical Fund. You may qualify for sales charge discounts for Advisor Class A shares if you and your family invest, or agree to invest in the future, at least $50,000 in Advisor Class A shares of the Kinetics Funds. More information about these and other discounts is available from your financial professional and in the sections titled “Description of Advisor Classes” beginning on page 105 of the Fund’s prospectus, in Appendix A to this Prospectus - Financial Intermediary Sales Charge Variations, and “Purchasing Shares” beginning on page 58 of the Fund’s statement of additional information.

SHAREHOLDER FEES (fees paid directly from your investment)

Shareholder Fees - Advisor A & C Prospectus - Advisor A & C Prospectus - Kinetics Medical Fund		Advisor Class A	Advisor Class C
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price)	[1]	5.75%	none
Maximum Deferred Sales Charge (as a percentage)	[1]	none	1.00%
Redemption Fee (as a percentage of Amount Redeemed)	[1]	(2.00%)	(2.00%)

ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses - Advisor A & C Prospectus - Advisor A & C Prospectus - Kinetics Medical Fund		Advisor Class A	Advisor Class C
Management Fees (as a percentage of Assets)	[1]	1.25%	1.25%
Distribution and Service (12b-1) Fees	[2]	0.50%	1.00%
Other Expenses (as a percentage of Assets):		0.73%	0.73%
Expenses (as a percentage of Assets)		2.48%	2.98%
Fee Waiver or Reimbursement	[3]	(0.84%)	(0.84%)
Net Expenses (as a percentage of Assets)		1.64%	2.14%

Example.

This Example is intended to help you compare the cost of investing in the Medical Fund with the cost of investing in other mutual funds. This Example assumes that you invest $10,000 in the Medical Fund for the time periods indicated and then redeem all of your shares at the end of these periods. The Example also assumes that your investment has a 5% return each year and that the Medical Fund’s operating expenses remain the same (taking into account the expense limitation only the first year).Although your actual costs may be higher or lower, based on these assumptions your cost for the Medical Fund would be:

Although your actual costs may be higher or lower, based on these assumptions your cost for the Medical Fund would be:

Expense Example - Advisor A & C Prospectus - Advisor A & C Prospectus - Kinetics Medical Fund - USD ($)	Expense Example, with Redemption, 1 Year	Expense Example, with Redemption, 3 Years	Expense Example, with Redemption, 5 Years	Expense Example, with Redemption, 10 Years
Advisor Class A	732	1,228	1,748	3,169
Advisor Class C	320	843	1,494	3,240

Expense Example, No Redemption - Advisor A & C Prospectus	Expense Example, No Redemption, 1 Year	Expense Example, No Redemption, 3 Years	Expense Example, No Redemption, 5 Years	Expense Example, No Redemption, 10 Years
Advisor A & C Prospectus | Kinetics Medical Fund | Advisor Class C | USD ($)	217	843	1,494	3,240

Portfolio Turnover.

The Medical Portfolio pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the Example, affect the Medical Portfolio’s, and therefore the Medical Fund’s, performance. During the most recent fiscal year, the Medical Portfolio’s portfolio turnover rate was 0% of the average value of its portfolio.

Principal Investment Strategy

The Medical Fund is a non-diversified fund that invests all of its investable assets in the Medical Portfolio, a series of Kinetics Portfolios Trust. Under normal circumstances, the Medical Portfolio invests at least 80% of its net assets plus any borrowings for investment purposes in common stocks, convertible securities, warrants, and other equity securities having the characteristics of common stocks (such as American Depositary Receipts (“ADRs”), Global Depositary Receipts (“GDRs”) and International Depositary Receipts (“IDRs”)) of U.S. and foreign companies engaged in medical research, pharmaceutical and medical technology industries and related technology industries, generally, with an emphasis toward companies engaged in cancer research and drug development, such as pharmaceutical development companies, surgical and medical instrument manufacturers and developers, pharmaceutical manufacturers, and biotech and medical research companies.These types of companies derive at least 50% of their revenue from such activities. The Medical Portfolio may also invest in exchange-traded funds (“ETFs”) and purchase and write options for hedging purposes and/or direct investment.

The Medical Portfolio may invest up to 20% of its total assets in convertible and non-convertible debt securities rated below investment grade, also known as junk bonds, or unrated securities that the Investment Adviser has determined to be of comparable quality.

The Investment Adviser selects portfolio securities by evaluating a company’s positioning and the resources that it currently expends on research and development, looking for a significant percentage, or large amount, of capital invested into research and treatment of cancer and other diseases. The Investment Adviser also considers a company’s fundamentals by reviewing its balance sheets, corporate revenues, earnings and dividends. The Investment Adviser also looks at the amount of capital a company spends on research and development because the Investment Adviser believes that such expenditures frequently have significant bearing on future growth. The Medical Portfolio may invest in companies of any size, including small and medium-size companies. Additionally, the Medical Portfolio may participate in securities lending arrangements up to 33-1/3% of the securities in its portfolio with brokers, dealers, and financial institutions (but not individuals) in order to increase the return on its portfolio.

Sell decisions are generally triggered by either adequate value being achieved, as determined by the Investment Adviser, or by an adverse change in a company’s operating performance or a deterioration of the company’s business model. A sell trigger may also occur if the Investment Adviser discovers a new investment opportunity that it believes is more compelling and represents a greater risk reward profile than other investment(s) held by the Medical Portfolio.

The Medical Portfolio may maintain during a temporary period, which could be for a short period or a longer period lasting several years or more, of abnormal conditions, a significant portion of its total assets in cash and securities, generally considered to be cash and cash equivalents, including, but not limited to: high quality, U.S. short-term debt securities and money market instruments.  The Investment Adviser will invest in such short-term cash positions to the extent that the Investment Adviser is unable to find sufficient investments meeting its criteria and when the Investment Adviser believes the purchase of additional equity securities would not further the investment objective of the Medical Portfolio during such periods of time.  Additionally, to respond to adverse market, economic, political or other conditions, which may persist for short or long periods of time, the Medical Portfolio may invest up to 100% of its assets in the types of high quality, U.S. short-term debt securities and money market instruments described above.

If the market advances during periods when the Medical Portfolio is holding a large cash position, the Portfolio may not participate as much as it would have if it had been more fully invested in securities.  In the aforementioned temporary defensive periods, the Investment Adviser believes that an additional amount of liquidity in the Medical Portfolio is desirable both to meet operating requirements and to take advantage of new investment opportunities. When the Medical Portfolio holds a significant portion of assets in cash and cash equivalents, it may not meet its investment objective.

Principal Investment Risks

Investing in common stocks has inherent risks that could cause you to lose money.The principal risks of investing in the Medical Fund, and indirectly the Medical Portfolio, are listed below and could adversely affect the NAV, total return and value of the Medical Fund, the Medical Portfolio and your investment.

ª Stock Market Risks: Stock mutual funds are subject to stock market risks and significant fluctuations in value. If the stock market declines in value, the Medical Portfolio, and therefore the Medical Fund, is likely to decline in value and you could lose money on your investment.

ª Stock Selection Risks: The portfolio securities selected by the Investment Adviser may decline in value or not increase in value when the stock market in general is rising and may fail to meet the Medical Portfolio’s, and therefore the Medical Fund’s, investment objective.

ª Liquidity Risks: The Investment Adviser may not be able to sell portfolio securities at an optimal time or price.

ª Industry Emphasis Risks: Mutual funds that invest a substantial portion of their assets in a particular industry carry a risk that a group of industry-related securities will decline in price due to industry-specific developments. Companies in the same or similar industries may share common characteristics and are more likely to react comparably to industry-specific market or economic developments.

ª Concentration Risks of the Medical Industry: Medical and pharmaceutical-related companies in general are subject to the rate of change in technology, which is generally higher than that of other industries. Similarly, cancer research-related industries use many products and services of companies engaged in medical and pharmaceutical-related activities and are also subject to relatively high risks of rapid obsolescence caused by progressive scientific and technological advances. Additionally, it is possible that a medical device or product may fail after its research period; such research period may involve substantial research, testing and development time and the development company may incur significant costs. Further, the medical research and development industry is subject to strict regulatory scrutiny and ongoing legislative action.

ª Small and Medium-Size Company Risks: The Medical Portfolio may invest in the equity securities of small and medium-size companies. Small and medium-size companies often have narrower markets and more limited managerial and financial resources than do larger, more established companies. As a result, their performance can be more volatile and they face a greater risk of business failure, which could increase the volatility of the Medical Portfolio’s assets.

ª Exchange-Traded Funds (ETFs) Risks: ETFs are registered investment companies whose shares are listed and traded on U.S. stock exchanges or otherwise traded in the over-the-counter market. In general, passively-managed ETFs seek to track a specified securities index or a basket of securities that an “index provider,” such as Standard & Poor’s, selects as representative of a market, market segment or industry sector. A passively-managed ETF is designed so that its performance will correspond closely with that of the index it tracks. A leveraged ETF will engage in transactions and purchase instruments that give rise to forms of leverage, including, among others, the use of reverse repurchase agreements and other borrowings, the investment of collateral from loans of portfolio securities, the use of when issued, delayed-delivery or forward commitment transactions or short sales.  To the extent a fund invests in ETFs that achieve leveraged exposure to their underlying indexes through the use of derivative instruments, the fund will indirectly be subject to leveraging risk.As a shareholder in an ETF, the Medical Portfolio will bear its pro rata portion of an ETF’s expenses, including advisory fees, in addition to its own expenses.

ª Foreign Securities Risks: The Medical Portfolio may invest in foreign securities directly or through ADRs, GDRs and IDRs. Foreign securities can carry higher returns but involve more risks than those associated with U.S. investments. Additional risks associated with investment in foreign securities include currency fluctuations, political and economic instability, differences in financial reporting standards and less stringent regulation of securities markets.

ª Non-Diversification Risks:As a non-diversified investment company, the Medical Portfolio can invest a large percentage of its assets in a small number of issuers. As a result, a change in the value of any one investment may affect the overall value of the Medical Portfolio’s shares, and therefore the Medical Fund’s shares, more than shares of a diversified mutual fund that holds more investments.

ª Interest Rate Risk: The risk that when interest rates increase, fixed-income securities held by the Medical Portfolio will decline in value. Long-term fixed-income securities will normally have more price volatility because of this risk than short-term fixed-income securities. It is likely there will be less governmental action in the near future to maintain low interest rates. The negative impact on fixed income securities from the resulting rate increases for that and other reasons could be swift and significant.

ª Leveraging Risks: Investments in derivative instruments may give rise to a form of leverage. The Investment Adviser may engage in speculative transactions, which involve substantial risk and leverage. The use of leverage by the Investment Adviser may increase the volatility of the Medical Portfolio. These leveraged instruments may result in losses to the Medical Portfolio or may adversely affect the Medical Portfolio’s NAV or total return, because instruments that contain leverage are more sensitive to changes in interest rates. The Medical Portfolio may also have to sell assets at inopportune times to satisfy its obligations in connection with such transactions.

ª Option Transaction Risks: Purchasing and writing put and call options are highly specialized activities and entail greater than ordinary investment risks. The successful use of options depends in part on the ability of the Investment Adviser to manage future price fluctuations and the degree of correlation between the options and securities markets. By writing put options on equity securities, the Medical Portfolio gives up the opportunity to benefit from potential increases in the value of the common stocks above the strike prices of the written put options, but continues to bear the risk of declines in the value of its common stock portfolio. The Medical Portfolio will receive a premium from writing a covered call option that it retains whether or not the option is exercised. The premium received from the written options may not be sufficient to offset any losses sustained from the volatility of the underlying equity securities over time.

ª Below Investment Grade Debt Securities Risks: Generally, below investment grade debt securities, i.e., junk bonds, are subject to greater credit risk, price volatility and risk of loss than investment grade securities. Junk bonds are considered to be speculative in nature.

ª Convertible Securities Risks: Convertible securities are subject to the risks affecting both equity and fixed income securities, including market, credit, liquidity and interest rate risk.

ª Management Risks: There is no guarantee that the Medical Fund will meet its investment objective. The Investment Adviser does not guarantee the performance of the Medical Fund, nor can it assure you that the market value of your investment will not decline.

Who may want to invest?

The Medical Fund may be appropriate for investors who:

ª wish to invest for the long-term;

ª want to diversify their portfolios;

ª want to allocate some portion of their long-term investments to value equity investing;

ª are willing to accept the volatility associated with equity investing; and

ª are comfortable with the risks described herein.

Performance

The bar chart and table shown below illustrate the variability of the Medical Fund’s returns. The bar chart indicates the risks of investing in the Medical Fund by showing the changes in the Medical Fund’s performance from year to year (on a calendar year basis). The table shows how the Medical Fund’s average annual returns, before and after taxes, (after taking into account any sales charges) compare with those of the S&P 500^® Index and the NASDAQ Composite^® Index, which represent broad measures of market performance. The past performance of the Medical Fund, before and after taxes, is not necessarily an indication of how the Medical Fund or the Medical Portfolio will perform in the future. Performance reflects fee waivers in place. If fee waivers were not in place, the Medical Fund’s performance would be reduced. The bar chart shows how the performance of Advisor Class A shares (the Class with the longest period of annual returns) has varied from year to year. The returns for Advisor Class C shares were different than the returns shown below because each Class of shares has different expenses. Updated performance information is available on the Fund’s website at http://www.kineticsfunds.com or by calling the Fund toll-free at (800) 930-3828.

Sales charges are not reflected in the bar chart. If these amounts were reflected, returns would be less than those shown.

The Medical Fund – Advisor Class A Calendar Year Returns as of 12/31

Best Quarter:	2013	Q1	20.48%
Worst Quarter:	2011	Q3	-15.66%

Average Annual Total Returns as of 12/31/2018

The after-tax returns for the Medical Fund’s Advisor Class A shares as shown in the following table are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.Your actual after-tax returns depend on your tax situation and may differ from those shown. If you own Fund shares in a tax-deferred account, such as a 401(k) plan or an individual retirement account (“IRA”), the information on after-tax returns is not relevant to your investment.After-tax returns are shown for Advisor Class A shares only. After-tax returns for Advisor Class C shares will differ.The Return After Taxes on Distributions and Sale of Fund Shares is higher than other return figures when a capital loss occurs upon the redemption of Fund shares.

Average Annual Total Returns - Advisor A & C Prospectus - Kinetics Medical Fund - Advisor A & C Prospectus	Label	1 Year		5 Years		10 Years		Since Inception	[1]	Inception Date
Advisor Class A	The Medical Fund (KRXAX) Class A Return Before Taxes	(4.45%)		3.64%		10.11%		5.27%		Apr. 26, 2001
Advisor Class A | After Taxes on Distributions	The Medical Fund (KRXAX) Class A Return After Taxes on Distributions	(6.45%)		1.84%		8.76%		4.40%
Advisor Class A | After Taxes on Distributions and Sales	The Medical Fund (KRXAX) Class A Return After Taxes on Distributions and Sale of Fund Shares	(1.26%)	[2]	2.71%	[2]	8.27%	[2]	4.26%	[2]
Advisor Class A | S&P 500® Index (reflects no deduction for fees, expenses, or taxes)	S&P 500® Index (reflects no deductions for fees, expenses or taxes)	(4.38%)		8.49%		13.12%		6.19%		Apr. 26, 2001
Advisor Class A | NASDAQ Composite® Index (reflects no deductions for fees, expenses or taxes)	NASDAQ Composite® Index (reflects no deductions for fees, expenses or taxes)	(3.88%)		9.70%		15.45%		6.91%		Apr. 26, 2001
Advisor Class C	The Medical Fund (KRXCX) Class C Return Before Taxes	(0.02%)		4.35%		10.20%		7.22%		Feb. 16, 2007
Advisor Class C | S&P 500® Index (reflects no deduction for fees, expenses, or taxes)	S&P 500® Index (reflects no deductions for fees, expenses or taxes)	(4.38%)		8.49%		13.12%		6.93%		Feb. 16, 2007
Advisor Class C | NASDAQ Composite® Index (reflects no deductions for fees, expenses or taxes)	NASDAQ Composite® Index (reflects no deductions for fees, expenses or taxes)	(3.88%)		9.70%		15.45%		8.58%		Feb. 16, 2007

Advisor A & C Prospectus | Kinetics Small Cap Opportunities Fund

Kinetics Small Cap Opportunities Fund

Investment Objective

The investment objective of the Small Cap Opportunities Fund (the “Small Cap Fund”) is long-term growth of capital. The Small Cap Fund is the sole “feeder fund” to The Small Cap Opportunities Portfolio (the “Small Cap Portfolio”), a series of Kinetics Portfolios Trust.

Fees and Expenses of the Fund

This table describes the fees and expenses you may pay if you buy and hold shares of the Small Cap Fund. You may qualify for sales charge discounts for Advisor Class A shares if you and your family invest, or agree to invest in the future, at least $50,000 in Advisor Class A shares of the Kinetics Funds. More information about these and other discounts is available from your financial professional and in the sections titled “Description of Advisor Classes” beginning on page 105 of the Fund’s prospectus, in Appendix A to this Prospectus - Financial Intermediary Sales Charge Variations, and “Purchasing Shares” beginning on page 58 of the Fund’s statement of additional information.

SHAREHOLDER FEES (fees paid directly from your investment)

Shareholder Fees - Advisor A & C Prospectus - Advisor A & C Prospectus - Kinetics Small Cap Opportunities Fund		Advisor Class A	Advisor Class C
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price)	[1]	5.75%	none
Maximum Deferred Sales Charge (as a percentage)	[1]	none	1.00%
Redemption Fee (as a percentage of Amount Redeemed)	[1]	(2.00%)	(2.00%)

ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses - Advisor A & C Prospectus - Advisor A & C Prospectus - Kinetics Small Cap Opportunities Fund		Advisor Class A	Advisor Class C
Management Fees (as a percentage of Assets)	[1]	1.25%	1.25%
Distribution and Service (12b-1) Fees	[2]	0.50%	1.00%
Other Expenses (as a percentage of Assets):		0.24%	0.24%
Acquired Fund Fees and Expenses		0.01%	0.01%
Expenses (as a percentage of Assets)	[3]	2.00%	2.50%
Fee Waiver or Reimbursement	[4]	(0.10%)	(0.10%)
Net Expenses (as a percentage of Assets)		1.90%	2.40%

Example.

This Example is intended to help you compare the cost of investing in the Small Cap Fund with the cost of investing in other mutual funds. This Example assumes that you invest $10,000 in the Small Cap Fund for the time periods indicated and then redeem all of your shares at the end of these periods. The Example also assumes that your investment has a 5% return each year and that the Small Cap Fund’s operating expenses remain the same (taking into account the expense limitation only in the first year).

Although your actual costs may be higher or lower, based on these assumptions your cost for the Small Cap Fund would be:

Expense Example - Advisor A & C Prospectus - Advisor A & C Prospectus - Kinetics Small Cap Opportunities Fund - USD ($)	Expense Example, with Redemption, 1 Year	Expense Example, with Redemption, 3 Years	Expense Example, with Redemption, 5 Years	Expense Example, with Redemption, 10 Years
Advisor Class A	757	1,157	1,582	2,761
Advisor Class C	346	769	1,322	2,828

Expense Example, No Redemption - Advisor A & C Prospectus	Expense Example, No Redemption, 1 Year	Expense Example, No Redemption, 3 Years	Expense Example, No Redemption, 5 Years	Expense Example, No Redemption, 10 Years
Advisor A & C Prospectus | Kinetics Small Cap Opportunities Fund | Advisor Class C | USD ($)	243	769	1,322	2,828

Portfolio Turnover.

The Small Cap Portfolio pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the Example, affect the Small Cap Portfolio’s, and therefore the Small Cap Fund’s, performance. During the most recent fiscal year, the Small Cap Portfolio’s portfolio turnover rate was 3% of the average value of its portfolio.

Principal Investment Strategy

The Small Cap Fund is a non-diversified fund that invests all of its investable assets in the Small Cap Portfolio, a series of Kinetics Portfolios Trust. Under normal circumstances, the Small Cap Portfolio invests at least 80% of its net assets plus any borrowings for investment purposes in common stocks, convertible securities, warrants and other equity securities having the characteristics of common stocks (such as American Depositary Receipts (“ADRs”), Global Depositary Receipts (“GDRs”) and International Depositary Receipts (“IDRs”)) of U.S. and foreign small capitalization companies that provide attractive valuation opportunities. The Small Cap Portfolio’s Investment Adviser considers small cap companies to be those with market capitalizations at or below the highest market capitalization of a component security within the S&P 600^® SmallCap Index. The highest market capitalization of a company within the S&P 600^® SmallCap Index was approximately $4.3 billion as of March 31, 2019. The Small Cap Portfolio may also invest in exchange-traded funds (“ETFs”) and purchase and write options for hedging purposes and/or direct investment.

The Small Cap Portfolio may invest up to 20% of its total assets in convertible and non-convertible debt securities rated below investment grade, also known as junk bonds, or unrated securities that the Investment Adviser has determined to be of comparable quality.

The Small Cap Portfolio focuses on undervalued and special situation small capitalization equities that the Investment Adviser believes have the potential for rewarding long-term investment results. Small Cap Portfolio securities will generally be selected from companies that are engaged in a number of industries if, in the Investment Adviser’s opinion, they are selling below their perceived intrinsic value, have limited or no institutional ownership, have had short-term earnings shortfalls, have had a recent initial public offering (“IPO”) but have not attracted significant analyst coverage, are selling at or below book or replacement value, or have modest price to earnings ratios. The Investment Adviser considers a company’s fundamentals by reviewing its balance sheets, corporate revenues, earnings and dividends. The Investment Adviser also looks at the amount of capital a company spends on research and development. Additionally, the Small Cap Portfolio may participate in securities lending arrangements up to 33-1/3% of the securities in its portfolio with brokers, dealers, and financial institutions (but not individuals) in order to increase the return on its portfolio.

The Small Cap Portfolio may invest indirectly in bitcoins exclusively through a Delaware statutory trust (“Grayscale Bitcoin Trust”) that offers exposure to bitcoin. Grayscale Bitcoin Trust offers shares on an ongoing basis through private placements pursuant to the exemption from registration provided by Rule 506(c) under Regulation D of the Securities Act of 1933, as amended. Bitcoins are a digital commodity that are not issued by a government, bank or central organization. Bitcoins exist on an online, peer-to-peer computer network (the “Bitcoin Network”) that hosts a public transaction ledger where bitcoin transfers are recorded (the “Blockchain”). Bitcoins have no physical existence beyond the record of transactions on the Blockchain. The Grayscale Bitcoin Trust invests principallyin bitcoins.

The Small Cap Portfolio contributed a portion of its holdings in the Grayscale Bitcoin Trustto a wholly-owned and controlled subsidiary organized under the laws of the Cayman Islands (the “Subsidiary”). The Small Cap Portfolio realized capital gain on the transfer to the extent the value of the transferred Grayscale Bitcoin Trust interest at the time of transfer exceeded its tax basis in the hands of the Small Cap Portfolio.

In the future, the Small Cap Portfolio may seek to gain additional exposure to the Grayscale Bitcoin Trust that may not produce qualifying income for the Small Cap Fund under the Internal Revenue Code. The Small Cap Portfolio will not make any additional investments in the Grayscale Bitcoin Trust if as a result of such investment, its aggregate investment in the Grayscale Bitcoin Trust, either directly or through a Subsidiary, would be more than 15% of its assets at the time of the investment.

The Subsidiary invests primarily in the Grayscale Bitcoin Trust. The Small Cap Portfolio will invest in its Subsidiary within the limitations of the federal tax laws, rules and regulations that apply to “regulated investment companies” (“RICs”) under Subchapter M of Subtitle A, Chapter 1, of the Internal Revenue Code (“Subchapter M”). However, the Small Cap Portfolio and its Subsidiary comply with the same fundamental investment restrictions on an aggregate basis, to the extent those restrictions are applicable to the investment activities of the Subsidiary. The Subsidiary also complies with Section 17 of the Investment Company Act of 1940 (the “1940 Act”) relating to affiliated transactions and custody. Unlike the Small Cap Fund, the Subsidiary does not, and will not, seek to qualify as a RIC. The Small Cap Portfolio is the sole shareholder of its Subsidiary and does not expect shares of its Subsidiary to be offered or sold to other investors.

Sell decisions are generally triggered by either adequate value being achieved, as determined by the Investment Adviser, or by an adverse change in a company’s operating performance or a deterioration of the company’s business model.  A sell trigger may also occur if the Investment Adviser discovers a new investment opportunity that it believes is more compelling and represents a greater risk reward profile than other investment(s) held by the Small Cap Portfolio.

The Small Cap Portfolio may maintain during a temporary period, which could be for a short period or a longer period lasting several years or more, of abnormal conditions, a significant portion of its total assets in cash and securities, generally considered to be cash and cash equivalents, including, but not limited to: high quality, U.S. short-term debt securities and money market instruments.  The Investment Adviser will invest in such short-term cash positions to the extent that the Investment Adviser is unable to find sufficient investments meeting its criteria and when the Investment Adviser believes the purchase of additional equity securities would not further the investment objective of the Small Cap Portfolio during such periods of time.  Additionally, to respond to adverse market, economic, political or other conditions, which may persist for short or long periods of time, the Small Cap Portfolio may invest up to 100% of its assets in the types of high quality, U.S. short-term debt securities and money market instruments described above.

If the market advances during periods when the Small Cap Portfolio is holding a large cash position, the Portfolio may not participate as much as it would have if it had been more fully invested in securities.  In the aforementioned temporary defensive periods, the Investment Adviser believes that an additional amount of liquidity in the Small Cap Portfolio is desirable both to meet operating requirements and to take advantage of new investment opportunities. When the Small Cap Portfolio holds a significant portion of assets in cash and cash equivalents, it may not meet its investment objective.

Principal Investment Risks

Investing in common stocks has inherent risks that could cause you to lose money.The principal risks of investing in the Small Cap Fund, and indirectly the Small Cap Portfolio, are listed below and could adversely affect the NAV, total return and value of the Small Cap Fund, the Small Cap Portfolio and your investment.

ª Stock Market Risks: Stock mutual funds are subject to stock market risks and significant fluctuations in value. If the stock market declines in value, the Small Cap Portfolio, and therefore the Small Cap Fund, is likely to decline in value and you could lose money on your investment.

ª Stock Selection Risks: The portfolio securities selected by the Investment Adviser may decline in value or not increase in value when the stock market in general is rising and may fail to meet the Small Cap Portfolio’s, and therefore the Small Cap Fund’s, investment objective.

ª Liquidity Risks: The Investment Adviser may not be able to sell portfolio securities at an optimal time or price.

ª Small-Capitalization Company Risks: The Small Cap Portfolio primarily invests in the stocks of small-capitalization companies. Small-capitalization companies often have narrower markets and more limited managerial and financial resources than larger, more established companies. As a result, their performance can be more volatile and they face a greater risk of business failure, which could increase the volatility of the Small Cap Portfolio’s assets.

ª Exchange-Traded Funds (ETFs) Risks: ETFs are registered investment companies whose shares are listed and traded on U.S. stock exchanges or otherwise traded in the over-the-counter market. In general, passively-managed ETFs seek to track a specified securities index or a basket of securities that an “index provider,” such as Standard & Poor’s, selects as representative of a market, market segment or industry sector. A passively-managed ETF is designed so that its performance will correspond closely with that of the index it tracks. A leveraged ETF will engage in transactions and purchase instruments that give rise to forms of leverage, including, among others, the use of reverse repurchase agreements and other borrowings, the investment of collateral from loans of portfolio securities, the use of when issued, delayed-delivery or forward commitment transactions or short sales.  To the extent a fund invests in ETFs that achieve leveraged exposure to their underlying indexes through the use of derivative instruments, the fund will indirectly be subject to leveraging risk.As a shareholder in an ETF, the Small Cap Portfolio will bear its pro rata portion of an ETF’s expenses, including advisory fees, in addition to its own expenses.

ª Foreign Securities Risks: The Small Cap Portfolio may invest in foreign securities directly or through ADRs, GDRs and IDRs. Foreign securities can carry higher returns but involve more risks than those associated with U.S. investments. Additional risks associated with investment in foreign securities include currency fluctuations, political and economic instability, differences in financial reporting standards and less stringent regulation of securities markets.

ª Non-Diversification Risks:As a non-diversified investment company, the Small Cap Portfolio can invest a large percentage of its assets in a small number of issuers. As a result, a change in the value of any one investment may affect the overall value of the Small Cap Portfolio’s shares, and therefore the Small Cap Fund’s shares, more than shares of a more diversified mutual fund that holds more investments.

ª Interest Rate Risk: The risk that when interest rates increase, fixed-income securities held by the Small Cap Portfolio will decline in value. Long-term fixed-income securities will normally have more price volatility because of this risk than short-term fixed-income securities. It is likely there will be less governmental action in the near future to maintain low interest rates. The negative impact on fixed income securities from the resulting rate increases for that and other reasons could be swift and significant.

ª Leveraging Risks: Investments in derivative instruments may give rise to a form of leverage. The Investment Adviser may engage in speculative transactions which involve substantial risk and leverage. The use of leverage by the Investment Adviser may increase the volatility of the Small Cap Portfolio. These leveraged instruments may result in losses to the Small Cap Portfolio or may adversely affect the Small Cap Portfolio’s NAV or total return, because instruments that contain leverage are more sensitive to changes in interest rates. The Small Cap Portfolio may also have to sell assets at inopportune times to satisfy its obligations in connection with such transactions.

ª Option Transaction Risks: Purchasing and writing put and call options are highly specialized activities and entail greater than ordinary investment risks. The successful use of options depends in part on the ability of the Investment Adviser to manage future price fluctuations and the degree of correlation between the options and securities markets. By writing put options on equity securities, the Small Cap Portfolio gives up the opportunity to benefit from potential increases in the value of the common stocks above the strike prices of the written put options, but continues to bear the risk of declines in the value of its common stock portfolio. The Small Cap Portfolio will receive a premium from writing a covered call option that it retains whether or not the option is exercised. The premium received from the written options may not be sufficient to offset any losses sustained from the volatility of the underlying equity securities over time.

ª Below Investment Grade Debt Securities Risks: Generally, below investment grade debt securities, i.e., junk bonds, are subject to greater credit risk, price volatility and risk of loss than investment grade securities. Junk bonds are considered to be speculative in nature.

ª Convertible Securities Risks: Convertible securities are subject to the risks affecting both equity and fixed income securities, including market, credit, liquidity and interest rate risk.

ª Special Situations Risks: The Small Cap Portfolio may use aggressive investment techniques, including seeking to benefit from “special situations,” such as mergers, reorganizations, or other unusual events expected to affect a particular issuer. There is a risk that the “special situation” might not occur or involve longer time frames than originally expected, which could have a negative impact on the price of the issuer’s securities and fail to produce gains or produce a loss for the Small Cap Portfolio, and therefore the Small Cap Fund.

ª Management Risks: There is no guarantee that the Small Cap Fund will meet its investment objective. The Investment Adviser does not guarantee the performance of the Small Cap Fund, nor can it assure you that the market value of your investment will not decline.

ª IPO Risk: IPO share prices can be volatile and fluctuate considerably due to factors such as the absence of a prior public market, unseasoned trading, a limited number of shares available for trading, and limited operating history and/or information about the issuer. The purchase of IPO shares may involve high transaction costs. IPO shares are subject to market risk and liquidity risk.

ª Bitcoin Risks: The value of the Small Cap Portfolio’s investment in the Grayscale Bitcoin Trust directly and indirectly through its Subsidiary is subject to fluctuations in the value of bitcoins.  The value of bitcoins is determined by the supply of and demand for bitcoins in the global market for the trading of bitcoins, which consists of transactions on electronic bitcoin exchanges (“Bitcoin Exchanges”). Pricing on Bitcoin Exchanges and other venues can be volatile and can adversely affect the value of the Grayscale Bitcoin Trust. Currently, there is relatively small use of bitcoins in the retail and commercial marketplace in comparison to the relatively large use of bitcoins by speculators, thus contributing to price volatility that could adversely affect the Small Cap Portfolio’s investment in the Grayscale Bitcoin Trust. Bitcoin transactions are irrevocable, and stolen or incorrectly transferred bitcoins may be irretrievable. As a result, any incorrectly executed bitcoin transactions could adversely affect the value of the Small Cap Portfolio’s investment in the Grayscale Bitcoin Trust. Shares of the Grayscale Bitcoin Trust may trade at a premium or discount to the net asset value of the Grayscale Bitcoin Trust.

ª Regulatory Risk: Bitcoin is generally not subject to the same degree of regulation as are registered U.S. securities. The reporting, accounting and auditing standards for Bitcoin may differ from the standards for registered U.S. securities. Furthermore, countries, including the U.S., may in the future curtail or outlaw the acquisition, use or redemption of bitcoins.

ª Volatility Risk: The Portfolio may have investments, including but not limited to Bitcoin, that appreciate or depreciate significantly in value over short periods of time. This may cause the Portfolio’s net asset value per share to experience significant increases or declines in value over short periods of time.

ª Valuation Risk: The sales price the Portfolio could receive for any particular portfolio investment may differ from the Portfolio’s valuation of the investment, particularly for securities or other investments, such as Bitcoin, that trade in thin or volatile markets or that are valued using a fair value methodology. Valuation may be more difficult in times of market turmoil since many investors and market makers may be reluctant to purchase complex instruments or quote prices for them. The Portfolio’s ability to value its investments may be impacted by technological issues and/or errors by pricing services or other third party service providers. Shares of Grayscale Bitcoin Trust are intended to reflect the price of bitcoin assets, less fees and expenses, and the shares currently trade at a substantial premium to the net asset value of such assets. As such, the price of Grayscale Bitcoin Trust may go down even if the price of the underlying asset, bitcoin, remains unchanged. Additionally, shares that trade at a premium mean that an investor who purchases $1 of a portfolio will actually own less than $1 in assets.

ª Subsidiary Risks: By investing in its Subsidiary, the Small Cap Portfolio is indirectly exposed to the risks associated with the Subsidiary’s investments. Those investments held by the Subsidiary are generally similar to the investments that are permitted to be held by the Small Cap Portfolio and are subject to the same risks that would apply to similar investments if held directly by the Small Cap Portfolio. The Subsidiary is not registered under the 1940 Act and, unless otherwise noted in this Prospectus, is not subject to all the investor protections of the 1940 Act. In addition, changes in the laws of the United States and/or the Cayman Islands could result in the inability of the Small Cap Portfolio and/or its Subsidiary to continue to operate and could adversely affect the Small Cap Fund’s performance.

ª Tax Risks: In order to qualify as a RIC, the Small Cap Fund must meet certain requirements regarding the source of its income, the diversification of its assets and the distribution of its income. Under the test regarding the source of a RIC’s income, at least 90% of the gross income of the RIC each year must be qualifying income, which consists of dividends, interest, gains on investments in securities and certain other categories of investment income. It appears to be the position of the Internal Revenue Service (“IRS”) that gain realized on bitcoin investments such as investments in the Grayscale Bitcoin Trust will not be qualifying income. The Small Cap Portfolio’s investment in its Subsidiary is expected to provide the Small Cap Fund with exposure to such bitcoin investments within the limitations of the Internal Revenue Code for qualification as a RIC because, under applicable tax rules, the income earned by the Subsidiary will flow out as qualifying income for the RIC even though the income would not be qualifying income if earned directly by the RIC or directly by an entity classified as a partnership for federal income tax purposes, such as the Small Cap Portfolio, in which the RIC invests. There is a risk, however, that the IRS might assert that the income derived from the Small Cap Portfolio’s investment in its Subsidiary will not be considered qualifying income. If the Small Cap Fund were to fail to qualify as a RIC and became subject to federal income tax, shareholders of the Small Cap Fund would be subject to diminished returns. Changes in the laws of the United States and/or the Cayman Islands could result in the inability of the Small Cap Portfolio and/or its Subsidiary to operate as described in this Prospectus and could adversely affect the Small Cap Fund. For example, the Cayman Islands does not currently impose any income, corporate or capital gains tax or withholding tax on the Subsidiary. If Cayman Islands law changes such that the Subsidiary must pay Cayman Islands taxes, Small Cap Fund shareholders would likely suffer decreased investment returns.

ª Sector Concentration Risk: Although the Small Cap Portfolio will not concentrate its investments in any industries, the Small Cap Portfolio may, at certain times, have concentrations in one or more sectors which may cause the Portfolio to be more sensitive to economic changes or events occurring in those sectors. As of December 31, 2018, the Portfolio had 29.4% invested in the Petroleum and Gas sector.

ª Petroleum and Gas Sector Risk: The profitability of companies in the oil and gas industry is related to worldwide energy prices, exploration costs and production spending. Companies in the oil and gas industry may be at risk for environmental damage claims and other types of litigation. Companies in the oil and gas industry may be adversely affected by: natural disasters or other catastrophes; changes in exchange rates or interest rates; prices for competitive energy services, economic conditions, tax treatment, or government regulation; government intervention; negative public perception; or unfavorable events in the regions where companies operate (e.g., expropriation, nationalization, confiscation of assets and property, imposition of restrictions on foreign investments or repatriation of capital, military coups, social or political unrest, violence or labor unrest). Companies in the oil and gas industry may have significant capital investments in, or engage in transactions involving, emerging market countries, which may heighten these risks.

Who may want to invest?

The Small Cap Fund may be appropriate for investors who:

ª wish to invest for the long-term;

ª want to diversify their portfolios;

ª want to allocate some portion of their long-term investments to value equity investing;

ª are willing to accept the volatility associated with equity and Bitcoin investing; and

ª are comfortable with the risks described herein.

Performance

The bar chart and table shown below illustrate the variability of the Small Cap Fund’s returns. The bar chart indicates the risks of investing in the Small Cap Fund by showing the changes in the Small Cap Fund’s performance from year to year (on a calendar year basis). The table shows how the Small Cap Fund’s average annual returns, before and after taxes, (after taking into account any sales charges) compare with those of the S&P 600^® SmallCap Index and the S&P 500^® Index, which represent broad measures of market performance. The past performance of the Small Cap Fund, before and after taxes, is not necessarily an indication of how the Small Cap Fund or the Small Cap Portfolio will perform in the future. Performance reflects fee waivers in place. If fee waivers were not in place, the Small Cap Fund’s performance would be reduced. The bar chart shows how the performance of Advisor Class A shares (the Class with the longest period of annual returns) has varied from year to year. The returns for Advisor Class C shares were different than the returns shown below because each Class of shares has different expenses. Updated performance information is available on the Fund’s website at http://www.kineticsfunds.com or by calling the Fund toll-free at (800) 930-3828.

Sales charges are not reflected in the bar chart. If these amounts were reflected, returns would be less than those shown.

The Small Cap Fund – Advisor Class A Calendar Year Returns as of 12/31

Best Quarter:	2009	Q2	41.80%
Worst Quarter:	2018	Q4	-19.74%

Average Annual Total Returns as of 12/31/2018

The after-tax returns for the Small Cap Fund’s Advisor Class A shares as shown in the following table are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.Your actual after-tax returns depend on your tax situation and may differ from those shown. If you own Fund shares in a tax-deferred account, such as a 401(k) plan or an individual retirement account (“IRA”), the information on after-tax returns is not relevant to your investment.After-tax returns are shown for Advisor Class A shares only. After-tax returns for Advisor Class C shares will differ.The Return After Taxes on Distributions and Sale of Fund Shares is higher than other return figures when a capital loss occurs upon the redemption of Fund shares.

Average Annual Total Returns - Advisor A & C Prospectus - Kinetics Small Cap Opportunities Fund - Advisor A & C Prospectus	Label	1 Year		5 Years		10 Years		Since Inception	[1]	Inception Date
Advisor Class A	The Small Cap Opportunities Fund (KSOAX) Class A Return Before Taxes	(5.75%)		3.57%		13.98%		7.82%		Dec. 31, 2001
Advisor Class A | After Taxes on Distributions	The Small Cap Opportunities Fund (KSOAX) Class A Return After Taxes on Distributions	(5.75%)		3.57%		13.91%		7.65%
Advisor Class A | After Taxes on Distributions and Sales	The Small Cap Opportunities Fund (KSOAX) Class A Return After Taxes on Distributions and Sale of Fund Shares	(3.41%)	[2]	2.77%	[2]	11.79%	[2]	6.53%	[2]
Advisor Class A | S&P 500® Index (reflects no deduction for fees, expenses, or taxes)	S&P 500® Index (reflects no deductions for fees, expenses or taxes)	(4.38%)		8.49%		13.12%		6.84%		Dec. 31, 2001
Advisor Class A | S&P 600® SmallCap Index (reflects no deductions for fees, expenses or taxes)	S&P 600® SmallCap Index (reflects no deductions for fees, expenses or taxes)	(8.48%)		6.34%		13.61%		9.15%		Dec. 31, 2001
Advisor Class C	The Small Cap Opportunities Fund (KSOCX) Class C Return Before Taxes	(1.50%)		4.29%		14.08%		4.73%		Feb. 16, 2007
Advisor Class C | S&P 500® Index (reflects no deduction for fees, expenses, or taxes)	S&P 500® Index (reflects no deductions for fees, expenses or taxes)	(4.38%)		8.49%		13.12%		6.93%		Feb. 16, 2007
Advisor Class C | S&P 600® SmallCap Index (reflects no deductions for fees, expenses or taxes)	S&P 600® SmallCap Index (reflects no deductions for fees, expenses or taxes)	(8.48%)		6.34%		13.61%		7.49%		Feb. 16, 2007

Advisor A & C Prospectus | Kinetics Market Opportunities Fund

Kinetics Market Opportunities Fund

Investment Objective

The investment objective of the Market Opportunities Fund is long-term growth of capital. The Market Opportunities Fund is the sole “feeder fund” to The Market Opportunities Portfolio, a series of Kinetics Portfolios Trust.

Fees and Expenses of the Fund

This table describes the fees and expenses you may pay if you buy and hold shares of the Market Opportunities Fund. You may qualify for sales charge discounts for Advisor Class A shares if you and your family invest, or agree to invest in the future, at least $50,000 in Advisor Class A shares of the Kinetics Funds. More information about these and other discounts is available from your financial professional and in the sections titled “Description of Advisor Classes” beginning on page 105 of the Fund’s prospectus, in Appendix A to this Prospectus - Financial Intermediary Sales Charge Variations, and “Purchasing Shares” beginning on page 58 of the Fund’s statement of additional information.

SHAREHOLDER FEES (fees paid directly from your investment)

Shareholder Fees - Advisor A & C Prospectus - Advisor A & C Prospectus - Kinetics Market Opportunities Fund		Advisor Class A	Advisor Class C
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price)	[1]	5.75%	none
Maximum Deferred Sales Charge (as a percentage)	[1]	none	1.00%
Redemption Fee (as a percentage of Amount Redeemed)	[1]	(2.00%)	(2.00%)

ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses - Advisor A & C Prospectus - Advisor A & C Prospectus - Kinetics Market Opportunities Fund		Advisor Class A	Advisor Class C
Management Fees (as a percentage of Assets)	[1],[2]	1.25%	1.25%
Distribution and Service (12b-1) Fees	[1],[3]	0.50%	1.00%
Other Expenses (as a percentage of Assets):	[1]	0.36%	0.36%
Expenses (as a percentage of Assets)	[1]	2.11%	2.61%
Fee Waiver or Reimbursement	[1],[4]	(0.46%)	(0.46%)
Net Expenses (as a percentage of Assets)	[1]	1.65%	2.15%

Example.

This Example is intended to help you compare the cost of investing in the Market Opportunities Fund with the cost of investing in other mutual funds. This Example assumes that you invest $10,000 in the Market Opportunities Fund for the time periods indicated and then redeem all of your shares at the end of these periods. The Example also assumes that your investment has a 5% return each year and that the Market Opportunities Fund’s operating expenses remain the same (taking into account the expense limitation only in the first three years).

Although your actual costs may be higher or lower, based on these assumptions your cost for the Market Opportunities Fund would be:

Expense Example - Advisor A & C Prospectus - Advisor A & C Prospectus - Kinetics Market Opportunities Fund - USD ($)	Expense Example, with Redemption, 1 Year	Expense Example, with Redemption, 3 Years	Expense Example, with Redemption, 5 Years	Expense Example, with Redemption, 10 Years
Advisor Class A	733	1,065	1,419	2,395
Advisor Class C	318	673	1,152	2,454

Expense Example, No Redemption - Advisor A & C Prospectus	Expense Example, No Redemption, 1 Year	Expense Example, No Redemption, 3 Years	Expense Example, No Redemption, 5 Years	Expense Example, No Redemption, 10 Years
Advisor A & C Prospectus | Kinetics Market Opportunities Fund | Advisor Class C | USD ($)	218	673	1,152	2,454

Portfolio Turnover.

The Market Opportunities Portfolio pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the Example, affect the Market Opportunities Portfolio’s, and therefore the Market Opportunities Fund’s, performance. During the most recent fiscal year, the Market Opportunities Portfolio’s portfolio turnover rate was 8% of the average value of its portfolio.

Principal Investment Strategy

The Market Opportunities Fund is a non-diversified fund that invests all of its investable assets in the Market Opportunities Portfolio, a series of Kinetics Portfolios Trust. Under normal circumstances, the Market Opportunities Portfolio invests at least 65% of its net assets in common stocks, convertible securities, warrants and other equity securities having the characteristics of common stocks (such as American Depositary Receipts (“ADRs”), Global Depositary Receipts (“GDRs”) and International Depositary Receipts (“IDRs”)) of U.S. and foreign companies involved in capital markets or related to capital markets, as well as companies involved in the gaming industry. Capital market companies include companies that are engaged in or derive a substantial portion of their revenue from activities with a publicly traded securities exchange, such as equity exchanges and commodity exchanges, including but not limited to clearing firms and brokerage houses. The Market Opportunities Portfolio may also invest in exchange-traded funds (“ETFs”) and purchase and write options for hedging purposes and/or direct investment.

The Market Opportunities Portfolio may invest up to 20% of its total assets in convertible and non-convertible debt securities rated below investment grade, also known as junk bonds, or unrated securities that the Investment Adviser has determined to be of comparable quality.

The Market Opportunities Portfolio securities will be selected by the Investment Adviser from companies that are engaged in public exchanges, derivative exchanges, and capital markets; companies that experience operational scale from increased volume such as investment banks, credit card processing companies, electronic payment companies and companies in the gaming industry; and from companies that act as facilitators such as publicly traded expressways, airports, roads and railways. Companies that experience operational scale from increased volume are similar to capital markets companies because they have greater fixed costs than variable costs, operating margins that rise once fixed costs are covered, and an ability to generate higher operating margins once fixed costs are covered (referred to as operating leverage). High operating leverage describes a company’s ability to experience rising profit margins as revenues increase. These companies may be large, medium or small in size if, in the Investment Adviser’s opinion, these companies meet the Market Opportunities Portfolio’s investment criteria. The Investment Adviser seeks to invest in companies with high operating leverage that can expand capacity with negligible or limited associated costs. Generally, high returns on equity, long product life cycles, high barriers to entry and certain degrees of financial gearing are necessary for this. Financial gearing occurs with the use of loans and debt in companies where it is necessary to build capacity and infrastructure before operations can begin. Additionally, the Market Opportunities Portfolio may participate in securities lending arrangements up to 33-1/3% of the securities in its portfolio with brokers, dealers, and financial institutions (but not individuals) in order to increase the return on its portfolio.

The Market Opportunities Portfolio may invest indirectly in bitcoins exclusively through a Delaware statutory trust (“Grayscale Bitcoin Trust”) that offers exposure to bitcoin. Grayscale Bitcoin Trust offers shares on an ongoing basis through private placements pursuant to the exemption from registration provided by Rule 506(c) under Regulation D of the Securities Act of 1933, as amended. Bitcoins are a digital commodity that are not issued by a government, bank or central organization. Bitcoins exist on an online, peer-to-peer computer network (the “Bitcoin Network”) that hosts a public transaction ledger where bitcoin transfers are recorded (the “Blockchain”). Bitcoins have no physical existence beyond the record of transactions on the Blockchain. The Grayscale Bitcoin Trust invests principallyin bitcoins.

The Market Opportunities Portfolio contributed a portion of its holdings in the Grayscale Bitcoin Trustto a wholly-owned and controlled subsidiary organized under the laws of the Cayman Islands (the “Cayman Subsidiary”). The Market Opportunities Portfolio realized capital gain on the transfer to the extent the value of the transferred Grayscale Bitcoin Trust interest at the time of transfer exceeded its tax basis in the hands of the Market Opportunities Portfolio.

The Market Opportunities Portfolio is also the sole shareholder of a wholly owned subsidiary organized under Delaware law (the “Delaware Subsidiary”). The Market Opportunities Portfolio contributed a portion of its holdings in the Grayscale Bitcoin Trust to the Delaware Subsidiary. Any net gains that the Delaware Subsidiary recognizes on future sales of the contributed Grayscale Bitcoin Trust shares will be subject to federal and state corporate income tax, but the dividends that the Delaware Subsidiary pays to the Market Opportunities Portfolio (i.e., those gains, net of the tax paid and any other expenses of the Delaware Subsidiary, such as its management and advisory fees) will be eligible to be treated as “qualified dividend income” under the Internal Revenue Code. The Delaware Subsidiary and the Cayman Subsidiary are each referred to herein as a “Subsidiary” and collectively as “Subsidiaries.” Additional information regarding the tax treatment of the Fund is provided in the “Taxes” section of the SAI.

In the future, the Market Opportunities Portfolio may seek to gain additional exposure to the Grayscale Bitcoin Trust that may not produce qualifying income for the Market Opportunities Fund under the Internal Revenue Code. The Market Opportunities Portfolio will not make any additional investments in the Grayscale Bitcoin Trust if as a result of such investment, its aggregate investment in the Grayscale Bitcoin Trust, either directly or through a Subsidiary, would be more than 15% of its assets at the time of the investment.

Each Subsidiary invests primarily in the Grayscale Bitcoin Trust. The Market Opportunities Portfolio will invest in its Subsidiaries within the limitations of the federal tax laws, rules and regulations that apply to “regulated investment companies” (“RICs”) under Subchapter M of Subtitle A, Chapter 1, of the Internal Revenue Code (“Subchapter M”). However, the Market Opportunities Portfolio and each Subsidiary comply with the same fundamental investment restrictions on an aggregate basis, to the extent those restrictions are applicable to the investment activities of each Subsidiary. Each Subsidiary also complies with Section 17 of the Investment Company Act of 1940 (the “1940 Act”) relating to affiliated transactions and custody. Unlike the Market Opportunities Fund, each Subsidiary does not, and will not, seek to qualify as a RIC. The Market Opportunities Portfolio is the sole shareholder of each Subsidiary and does not expect shares of the Subsidiaries to be offered or sold to other investors.

Sell decisions are generally triggered by either adequate value being achieved, as determined by the Investment Adviser, or by an adverse change in a company’s operating performance or a deterioration of the company’s business model.  A sell trigger may also occur if the Investment Adviser discovers a new investment opportunity that it believes is more compelling and represents a greater risk reward profile than other investment(s) held by the Market Opportunities Portfolio.

The Market Opportunities Portfolio may maintain during a temporary period, which could be for a short period or a longer period lasting several years or more, of abnormal conditions, a significant portion of its total assets in cash and securities, generally considered to be cash and cash equivalents, including, but not limited to: high quality, U.S. short-term debt securities and money market instruments.  The Investment Adviser will invest in such short-term cash positions to the extent that the Investment Adviser is unable to find sufficient investments meeting its criteria and when the Investment Adviser believes the purchase of additional equity securities would not further the investment objective of the Market Opportunities Portfolio during such periods of time.  Additionally, to respond to adverse market, economic, political or other conditions, which may persist for short or long periods of time, the Market Opportunities Portfolio may invest up to 100% of its assets in the types of high quality, U.S. short-term debt securities and money market instruments described above.

If the market advances during periods when the Market Opportunities Portfolio is holding a large cash position, the Portfolio may not participate as much as it would have if it had been more fully invested in securities.  In the aforementioned temporary defensive periods, the Investment Adviser believes that an additional amount of liquidity in the Market Opportunities Portfolio is desirable both to meet operating requirements and to take advantage of new investment opportunities. When the Market Opportunities Portfolio holds a significant portion of assets in cash and cash equivalents, it may not meet its investment objective.

Principal Investment Risks

Investing in common stocks has inherent risks that could cause you to lose money.The principal risks of investing in the Market Opportunities Fund, and indirectly the Market Opportunities Portfolio, are listed below and could adversely affect the NAV, total return and the value of the Market Opportunities Fund, Market Opportunities Portfolio and your investment.

ª Stock Market Risks: Stock mutual funds are subject to stock market risks and significant fluctuations in value. If the stock market declines in value, the Market Opportunities Portfolio, and therefore the Market Opportunities Fund, is likely to decline in value and you could lose money on your investment.

ª Stock Selection Risks: The portfolio securities selected by the Investment Adviser may decline in value or not increase in value when the stock market in general is rising and may fail to meet the Market Opportunities Portfolio’s, and therefore the Market Opportunities Fund’s, investment objective.

ª Liquidity Risks: The Investment Adviser may not be able to sell portfolio securities at an optimal time or price.

ª Sector Emphasis Risks: The Market Opportunities Portfolio’s investments in the capital markets sector subjects it to the risks affecting that sector more than would a fund that invests in a wide variety of market sectors. For instance, companies in the capital markets sector may be adversely affected by changes in economic conditions as well as legislative initiatives, all of which may impact the profitability of companies in this sector. The Market Opportunities Portfolio’s investments in the gaming sector may be adversely affected by changes in economic conditions. The casino industry is particularly susceptible to economic conditions that negatively affect tourism. Casino and gaming companies are highly competitive, and new products, casino concepts and venues are competitive challenges to existing companies. In addition, gaming and related companies are highly regulated, and state and federal legislative changes can significantly impact profitability in those sectors.

ª Small and Medium-Size Company Risks: The Market Opportunities Portfolio may invest in the equity securities of small and medium-size companies. Small and medium-size companies often have narrower markets and more limited managerial and financial resources than do larger, more established companies. As a result, their performance can be more volatile and they face a greater risk of business failure, which could increase the volatility of the Market Opportunities Portfolio’s assets.

ª Exchange-Traded Funds (ETFs) Risks: ETFs are registered investment companies whose shares are listed and traded on U.S. stock exchanges or otherwise traded in the over-the-counter market. In general, passively-managed ETFs seek to track a specified securities index or a basket of securities that an “index provider,” such as Standard & Poor’s, selects as representative of a market, market segment or industry sector. A passively-managed ETF is designed so that its performance will correspond closely with that of the index it tracks. A leveraged ETF will engage in transactions and purchase instruments that give rise to forms of leverage, including, among others, the use of reverse repurchase agreements and other borrowings, the investment of collateral from loans of portfolio securities, the use of when issued, delayed-delivery or forward commitment transactions or short sales.  To the extent a fund invests in ETFs that achieve leveraged exposure to their underlying indexes through the use of derivative instruments, the fund will indirectly be subject to leveraging risk. As a shareholder in an ETF, the Market Opportunities Portfolio will bear its pro rata portion of an ETF’s expenses, including advisory fees, in addition to its own expenses.

ª Foreign Securities Risks: The Market Opportunities Portfolio may invest in foreign securities directly or through ADRs, GDRs and IDRs. Foreign securities can carry higher returns but involve more risks than those associated with U.S. investments. Additional risks associated with investment in foreign securities include currency fluctuations, political and economic instability, differences in financial reporting standards and less stringent regulation of securities markets.

ª Non-Diversification Risks:As a non-diversified investment company, the Market Opportunities Portfolio can invest a large percentage of its assets in a small number of issuers. As a result, a change in the value of any one investment may affect the overall value of the Market Opportunities Portfolio’s shares, and therefore the Market Opportunities Fund’s shares, more than shares of a diversified mutual fund that holds more investments.

ª Interest Rate Risk: The risk that when interest rates increase, fixed-income securities held by the Market Opportunities Portfolio will decline in value. Long-term fixed-income securities will normally have more price volatility because of this risk than short-term fixed-income securities. It is likely there will be less governmental action in the near future to maintain low interest rates. The negative impact on fixed income securities from the resulting rate increases for that and other reasons could be swift and significant.

ª Leveraging Risks: Investments in derivative instruments may give rise to a form of leverage. The Investment Adviser may engage in speculative transactions, which involve substantial risk and leverage. The use of leverage by the Investment Adviser may increase the volatility of the Market Opportunities Portfolio. These leveraged instruments may result in losses to the Market Opportunities Portfolio or may adversely affect the Market Opportunities Portfolio’s NAV or total return, because instruments that contain leverage are more sensitive to changes in interest rates. The Market Opportunities Portfolio may also have to sell assets at inopportune times to satisfy its obligations in connection with such transactions.

ª Option Transaction Risks: Purchasing and writing put and call options are highly specialized activities and entail greater than ordinary investment risks. The successful use of options depends in part on the ability of the Investment Adviser to manage future price fluctuations and the degree of correlation between the options and securities markets. By writing put options on equity securities, the Market Opportunities Portfolio gives up the opportunity to benefit from potential increases in the value of the common stocks above the strike prices of the written put options, but continues to bear the risk of declines in the value of its common stock portfolio. The Market Opportunities Portfolio will receive a premium from writing a covered call option that it retains whether or not the option is exercised. The premium received from the written options may not be sufficient to offset any losses sustained from the volatility of the underlying equity securities over time.

ª Below Investment Grade Debt Securities Risks: Generally, below investment grade debt securities, i.e., junk bonds, are subject to greater credit risk, price volatility and risk of loss than investment grade securities. Junk bonds are considered to be speculative in nature.

ª Convertible Securities Risks: Convertible securities are subject to the risks affecting both equity and fixed income securities, including market, credit, liquidity and interest rate risk.

ª Management Risks: There is no guarantee that the Market Opportunities Fund will meet its investment objective. The Investment Adviser does not guarantee the performance of the Market Opportunities Fund, nor can it assure you that the market value of your investment will not decline.

ª Bitcoin Risks: The value of the Market Opportunities Portfolio’s investment in the Grayscale Bitcoin Trust directly and indirectly through its Subsidiaries is subject to fluctuations in the value of bitcoins. The value of bitcoins is determined by the supply of and demand for bitcoins in the global market for the trading of bitcoins, which consists of transactions on electronic bitcoin exchanges (“Bitcoin Exchanges”). Pricing on Bitcoin Exchanges and other venues can be volatile and can adversely affect the value of the Grayscale Bitcoin Trust. Currently, there is relatively small use of bitcoins in the retail and commercial marketplace in comparison to the relatively large use of bitcoins by speculators, thus contributing to price volatility that could adversely affect the Market Opportunities Portfolio’s investment in the Grayscale Bitcoin Trust. Bitcoin transactions are irrevocable, and stolen or incorrectly transferred bitcoins may be irretrievable. As a result, any incorrectly executed bitcoin transactions could adversely affect the value of the Market Opportunities Portfolio’s investment in the Grayscale Bitcoin Trust. Shares of the Grayscale Bitcoin Trust may trade at a premium or discount to the net asset value of the Grayscale Bitcoin Trust.

ª Regulatory Risk: Bitcoin is generally not subject to the same degree of regulation as are registered U.S. securities. The reporting, accounting and auditing standards for Bitcoin may differ from the standards for registered U.S. securities. Furthermore, countries, including the U.S., may in the future curtail or outlaw the acquisition, use or redemption of bitcoins.

ª Volatility Risk: The Portfolio may have investments, including but not limited to Bitcoin, that appreciate or depreciate significantly in value over short periods of time. This may cause the Portfolio’s net asset value per share to experience significant increases or declines in value over short periods of time.

ª Valuation Risk: The sales price the Portfolio could receive for any particular portfolio investment may differ from the Portfolio’s valuation of the investment, particularly for securities or other investments, such as Bitcoin, that trade in thin or volatile markets or that are valued using a fair value methodology. Valuation may be more difficult in times of market turmoil since many investors and market makers may be reluctant to purchase complex instruments or quote prices for them. The Portfolio’s ability to value its investments may be impacted by technological issues and/or errors by pricing services or other third party service providers. Shares of Grayscale Bitcoin Trust are intended to reflect the price of bitcoin assets, less fees and expenses, and the shares currently trade at a substantial premium to the net asset value of such assets. As such, the price of Grayscale Bitcoin Trust may go down even if the price of the underlying asset, bitcoin, remains unchanged. Additionally, shares that trade at a premium mean that an investor who purchases $1 of a portfolio will actually own less than $1 in assets.

ª Subsidiary Risks: By investing in its Subsidiaries, the Market Opportunities Portfolio is indirectly exposed to the risks associated with each Subsidiary’s investments. Those investments held by the Subsidiaries are generally similar to the investments that are permitted to be held by the Market Opportunities Portfolio and are subject to the same risks that would apply to similar investments if held directly by the Market Opportunities Portfolio. Each Subsidiary is not registered under the 1940 Act and, unless otherwise noted in this Prospectus, is not subject to all the investor protections of the 1940 Act. In addition, changes in the laws of the United States, Delaware and/or the Cayman Islands could result in the inability of the Market Opportunities Portfolio and/or its Subsidiaries to continue to operate and could adversely affect the Market Opportunities Fund’s performance.

ª Tax Risks: In order to qualify as a RIC, the Market Opportunities Fund must meet certain requirements regarding the source of its income, the diversification of its assets and the distribution of its income. Under the test regarding the source of a RIC’s income, at least 90% of the gross income of the RIC each year must be qualifying income, which consists of dividends, interest, gains on investments in securities and certain other categories of investment income. It appears to be the position of the Internal Revenue Service (“IRS”) that gain realized on bitcoin investments such as investments in the Grayscale Bitcoin Trust will not be qualifying income. The Market Opportunities Portfolio’s investment in each Subsidiary is expected to provide the Market Opportunities Fund with exposure to such bitcoin investments within the limitations of the Internal Revenue Code for qualification as a RIC because, under applicable tax rules, the income earned by each Subsidiary will flow out as qualifying income for the RIC even though the income would not be qualifying income if earned directly by the RIC or directly by an entity classified as a partnership for federal income tax purposes, such as the Market Opportunities Portfolio, in which the RIC invests. There is a risk, however, that the IRS might assert that the income derived from the Market Opportunities Portfolio’s investment in a Subsidiary will not be considered qualifying income. If the Market Opportunities Fund were to fail to qualify as a RIC and became subject to federal income tax, shareholders of that Market Opportunities Fund would be subject to diminished returns. Changes in the laws of the United States, Delaware and/or the Cayman Islands could result in the inability of the Market Opportunities Portfolio and/or its Subsidiaries to operate as described in this Prospectus and could adversely affect the Market Opportunities Fund. For example, the Cayman Islands does not currently impose any income, corporate or capital gains tax or withholding tax on the Cayman Subsidiary. If Cayman Islands law changes such that the Cayman Subsidiary must pay Cayman Islands taxes, Fund shareholders would likely suffer decreased investment returns.

ª Sector Concentration Risk: Although the Market Opportunities Portfolio will not concentrate its investments in any industries, the Market Opportunities Portfolio may, at certain times, have concentrations in one or more sectors which may cause the Portfolio to be more sensitive to economic changes or events occurring in those sectors. As of December 31, 2018, the Portfolio had 27.2% invested in the Petroleum and Gas sector.

ª Petroleum and Gas Sector Risk: The profitability of companies in the oil and gas industry is related to worldwide energy prices, exploration costs and production spending. Companies in the oil and gas industry may be at risk for environmental damage claims and other types of litigation. Companies in the oil and gas industry may be adversely affected by: natural disasters or other catastrophes; changes in exchange rates or interest rates; prices for competitive energy services; economic conditions; tax treatment or government regulation; government intervention; negative public perception; or unfavorable events in the regions where companies operate (e.g., expropriation, nationalization, confiscation of assets and property, imposition of restrictions on foreign investments or repatriation of capital, military coups, social or political unrest, violence or labor unrest). Companies in the oil and gas industry may have significant capital investments in, or engage in transactions involving, emerging market countries, which may heighten these risks.

Who may want to invest?

The Market Opportunities Fund may be appropriate for investors who:

ª wish to invest for the long-term;

ª want to diversify their portfolios;

ª want to allocate some portion of their long-term investments to value equity investing;

ª are willing to accept the volatility associated with equity and Bitcoin investing; and

ª are comfortable with the risks described herein.

Performance

The bar chart and table shown below illustrate the variability of the Market Opportunities Fund’s returns. The bar chart indicates the risks of investing in the Market Opportunities Fund by showing the changes in the Market Opportunities Fund’s performance from year to year (on a calendar year basis). The table shows how the Market Opportunities Fund’s average annual returns, before and after taxes (after taking into account any sales charges) compare with those of the S&P 500^® Index and the MSCI EAFE Index, which represent broad measures of market performance. The past performance of the Market Opportunities Fund, before and after taxes, is not necessarily an indication of how the Market Opportunities Fund or the Market Opportunities Portfolio will perform in the future. Performance reflects fee waivers in effect. If fee waivers were not in place, the Market Opportunities Fund’s performance would be reduced. The bar chart shows how the performance of Advisor Class A shares (the Class with the longest period of annual returns) has varied from year to year. The returns for Advisor Class C shares were different than the returns shown below because each Class of shares has different expenses. Updated performance information is available on the Fund’s website at http://www.kineticsfunds.com/ or by calling the Fund toll-free at (800) 930-3828.

Sales charges are not reflected in the bar chart. If these amounts were reflected, returns would be less than those shown.

The Market Opportunities Fund – Advisor Class A Calendar Year Returns as of 12/31The Market Opportunities Fund – Advisor Class A Calendar Year Returns as of 12/31

Best Quarter:	2009	Q2	30.36%
Worst Quarter:	2018	Q4	-18.05%

Average Annual Total Returns as of 12/31/2018

The after-tax returns for the Market Opportunities Fund’s Advisor Class A shares as shown in the following table are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.Your actual after-tax returns depend on your tax situation and may differ from those shown. If you own Fund shares in a tax-deferred account, such as a 401(k) plan or an individual retirement account (“IRA”), the information on after-tax returns is not relevant to your investment.After-tax returns are shown for Advisor Class A shares only. After-tax returns for Advisor Class C shares will differ.The Return After Taxes on Distributions and Sale of Fund Shares is higher than other return figures when a capital loss occurs upon the redemption of Fund shares.

Average Annual Total Returns - Advisor A & C Prospectus - Kinetics Market Opportunities Fund - Advisor A & C Prospectus	Label	1 Year		5 Years		10 Years		Since Inception	[1]	Inception Date
Advisor Class A	The Market Opportunities Fund (KMKAX) Class A Return Before Taxes	(16.21%)		4.80%		12.73%		7.04%		Jan. 31, 2006
Advisor Class A | After Taxes on Distributions	The Market Opportunities Fund (KMKAX) Class A Return After Taxes on Distributions	(18.67%)		4.14%		12.25%		6.68%
Advisor Class A | After Taxes on Distributions and Sales	The Market Opportunities Fund (KMKAX) Class A Return After Taxes on Distributions and Sale of Fund Shares	(9.15%)	[2]	3.52%	[2]	10.56%	[2]	5.70%	[2]
Advisor Class A | S&P 500® Index (reflects no deduction for fees, expenses, or taxes)	S&P 500® Index (reflects no deductions for fees, expenses or taxes)	(4.38%)		8.49%		13.12%		7.59%		Jan. 31, 2006
Advisor Class A | MSCI EAFE Index (reflects no deduction of fees, expenses or taxes)	MSCI EAFE Index (reflects no deductions for fees, expenses or taxes)	(13.79%)		0.53%		6.32%		2.54%		Jan. 31, 2006
Advisor Class C	The Market Opportunities Fund (KMKCX) Class C Return Before Taxes	(12.29%)		5.51%		12.86%		5.34%		Feb. 16, 2007
Advisor Class C | S&P 500® Index (reflects no deduction for fees, expenses, or taxes)	S&P 500® Index (reflects no deductions for fees, expenses, or taxes)	(4.38%)		8.49%		13.12%		6.93%		Feb. 16, 2007
Advisor Class C | MSCI EAFE Index (reflects no deduction of fees, expenses or taxes)	MSCI EAFE Index (reflects no deductions for fees, expenses or taxes)	(13.79%)		0.53%		6.32%		0.91%		Feb. 16, 2007

Advisor A & C Prospectus | Kinetics Multi-Disciplinary Income Fund

Kinetics Multi-Disciplinary Income Fund

Investment Objectives

The investment objective of the Multi-Disciplinary Income Fund is total return. The Multi-Disciplinary Income Fund is the sole “feeder fund” to The Multi-Disciplinary Income Portfolio, a series of Kinetics Portfolios Trust.

Fees and Expenses of the Fund

This table describes the fees and expenses you may pay if you buy and hold shares of the Multi-Disciplinary Income Fund. You may qualify for sales charge discounts for Advisor Class A shares if you and your family invest, or agree to invest in the future, at least $50,000 in Advisor Class A shares of the Kinetics Funds. More information about these and other discounts is available from your financial professional and in the sections titled “Description of Advisor Classes” beginning on page 105 of the Fund’s prospectus, in Appendix A to this Prospectus - Financial Intermediary Sales Charge Variations, and “Purchasing Shares” beginning on page 58 of the Fund’s statement of additional information.

SHAREHOLDER FEES (fees paid directly from your investment)

Shareholder Fees - Advisor A & C Prospectus - Advisor A & C Prospectus - Kinetics Multi-Disciplinary Income Fund		Advisor Class A	Advisor Class C
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price)	[1]	5.75%	none
Maximum Deferred Sales Charge (as a percentage)	[1]	none	1.00%
Redemption Fee (as a percentage of Amount Redeemed)	[1]	(2.00%)	(2.00%)

ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses - Advisor A & C Prospectus - Advisor A & C Prospectus - Kinetics Multi-Disciplinary Income Fund		Advisor Class A	Advisor Class C
Management Fees (as a percentage of Assets)	[1]	1.25%	1.25%
Distribution and Service (12b-1) Fees	[2]	0.50%	1.00%
Other Expenses (as a percentage of Assets):		0.47%	0.47%
Acquired Fund Fees and Expenses		0.32%	0.32%
Expenses (as a percentage of Assets)	[3]	2.54%	3.04%
Fee Waiver or Reimbursement	[4]	(0.48%)	(0.48%)
Net Expenses (as a percentage of Assets)		2.06%	2.56%

Example.

This Example is intended to help you compare the cost of investing in the Multi-Disciplinary Income Fund with the cost of investing in other mutual funds. This Example assumes that you invest $10,000 in the Multi-Disciplinary Income Fund for the time periods indicated and then redeem all of your shares at the end of these periods. The Example also assumes that your investment has a 5% return each year and that the Multi-Disciplinary Income Fund’s operating expenses remain the same (taking into account the expense limitation only in the first year).

Although your actual costs may be higher or lower, based on these assumptions your cost for the Multi-Disciplinary Income Fund would be:

Expense Example - Advisor A & C Prospectus - Advisor A & C Prospectus - Kinetics Multi-Disciplinary Income Fund - USD ($)	Expense Example, with Redemption, 1 Year	Expense Example, with Redemption, 3 Years	Expense Example, with Redemption, 5 Years	Expense Example, with Redemption, 10 Years
Advisor Class A	772	1,277	1,807	3,251
Advisor Class C	362	894	1,554	3,322

Expense Example, No Redemption - Advisor A & C Prospectus	Expense Example, No Redemption, 1 Year	Expense Example, No Redemption, 3 Years	Expense Example, No Redemption, 5 Years	Expense Example, No Redemption, 10 Years
Advisor A & C Prospectus | Kinetics Multi-Disciplinary Income Fund | Advisor Class C | USD ($)	259	894	1,554	3,322

Portfolio Turnover.

The Multi-Disciplinary Income Portfolio pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the Example, affect the Multi-Disciplinary Income Portfolio’s, and therefore the Multi-Disciplinary Income Fund’s, performance. During the most recent fiscal year, the Multi-Disciplinary Income Portfolio’s portfolio turnover rate was 2% of the average value of its portfolio.

Principal Investment Strategy

The Multi-Disciplinary Income Fund is a diversified fund that invests all of its investable assets in the Multi-Disciplinary Income Portfolio, a series of Kinetics Portfolios Trust. “Total Return” sought by the Multi-Disciplinary Income Portfolio consists of income earned on the Multi-Disciplinary Income Portfolio’s investments, plus capital appreciation. The Multi-Disciplinary Income Portfolio utilizes a two-part investment strategy, which includes fixed-income components, including fixed-income exchange-traded funds (“ETFs”), and derivatives components. Under normal circumstances, the Multi-Disciplinary Income Portfolio will invest at least 65% of its net assets in fixed-income securities, derivatives and cash or cash equivalents committed as collateral for written option contracts.

There is no limit on the amount of assets the Multi-Disciplinary Income Portfolio may invest in fixed-income securities. For purposes of this Prospectus, fixed-income securities include debt securities issued or guaranteed by the U.S. Government or by an agency or instrumentality of the U.S. Government, corporate bonds and debentures, convertible debt securities, and debt securities of foreign issuers, including emerging market issuers. Corporate bonds held by the Multi-Disciplinary Income Portfolio generally are senior secured or senior unsecured, are of investment grade quality, and have durations of 0-5 years. However, there is no limit as to the maturities or credit ratings associated with such bonds. The Multi-Disciplinary Income Portfolio may invest up to 100% of its assets in debt securities that are rated below investment grade (“junk” bonds) and up to 5% of its total assets in defaulted junk bonds. The Multi-Disciplinary Income Portfolio may also invest up to 40% of its total assets at the time of purchase in debt securities of emerging market countries. The Multi-Disciplinary Income Portfolio utilizes a proprietary credit spread/relative value model to select positions and a portfolio construction and investment process that relies on value identification and diversification.

The Multi-Disciplinary Income Portfolio may invest up to 100% of its total assets in selling equity put options. The Multi-Disciplinary Income Portfolio may also invest in U.S. Treasury note futures; selling or buying equity calls, bond calls, and bond put options; and credit default swaps, as well as other derivatives, to manage risk or to enhance return. The Multi-Disciplinary Income Portfolio may also buy puts on specific underlying equity securities that are traded on a national securities exchange. The Multi-Disciplinary Income Portfolio will not invest more than 15% of its net assets in instruments that are not deemed liquid. In connection with the Multi-Disciplinary Income Portfolio’s positions in derivatives, the Multi-Disciplinary Income Portfolio will segregate liquid assets or will otherwise cover its position in accordance with applicable U.S. Securities and Exchange Commission (“SEC”) requirements.

The Investment Adviser uses a bottom-up approach in managing the Multi-Disciplinary Income Fund, which means that the focus is on the analysis of individual securities. By engaging in quantitative and qualitative analysis of individual securities, the Investment Adviser examines a company’s current valuation and earning potential and assesses the company’s competitive positioning. The bonds purchased in the Multi-Disciplinary Income Portfolio are selected from the same universe of companies that the Investment Adviser uses for equity investments. All of the same characteristics apply, however, in the Multi-Disciplinary Income Portfolio option premiums are also considered. Additionally, the Multi-Disciplinary Income Portfolio may participate in securities lending arrangements up to 33-1/3% of the securities in its portfolio with brokers, dealers, and financial institutions (but not individuals) in order to increase the return on its portfolio.

The Investment Adviser may sell a security due to changes in credit characteristics or outlook, as well as changes in portfolio strategy or cash flow needs. A security may also be sold and replaced with one that presents a better value or risk/reward profile. The Investment Adviser may actively trade Multi-Disciplinary Income Portfolio securities.

The Multi-Disciplinary Income Portfolio may maintain during a temporary period, which could be for a short period or a longer period lasting several years or more, of abnormal conditions, a significant portion of its total assets in cash and securities, generally considered to be cash and cash equivalents, including, but not limited to: high quality, U.S. short-term debt securities and money market instruments.  The Investment Adviser will invest in such short-term cash positions to the extent that the Investment Adviser is unable to find sufficient investments meeting its criteria and when the Investment Adviser believes the purchase of additional equity securities would not further the investment objective of the Multi-Disciplinary Income Portfolio during such periods of time.  Additionally, to respond to adverse market, economic, political or other conditions, which may persist for short or long periods of time, the Multi-Disciplinary Income Portfolio may invest up to 100% of its assets in the types of high quality, U.S. short-term debt securities and money market instruments described above.

If the market advances during periods when the Multi-Disciplinary Income Portfolio is holding a large cash position, the Portfolio may not participate as much as it would have if it had been more fully invested in securities.  In the aforementioned temporary defensive periods, the Investment Adviser believes that an additional amount of liquidity in the Multi-Disciplinary Income Portfolio is desirable both to meet operating requirements and to take advantage of new investment opportunities. When the Multi-Disciplinary Income Portfolio holds a significant portion of assets in cash and cash equivalents, it may not meet its investment objective.

Principal Investment Risks

The Multi-Disciplinary Income Portfolio’s investments, including common stocks, have inherent risks that could cause you to lose money.The principal risks of investing in the Multi-Disciplinary Income Fund, and indirectly the Multi-Disciplinary Income Portfolio, are listed below and could adversely affect the NAV, total return and the value of the Multi-Disciplinary Income Fund, Multi-Disciplinary Income Portfolio and your investment.

ª Below Investment Grade Debt Securities Risks: Generally, below investment grade debt securities, i.e., junk bonds, are subject to greater credit risk, price volatility and risk of loss than investment grade securities. Junk bonds are considered to be speculative in nature.

ª Credit Default Swap Agreement Risks: The Fund may enter into credit default swap agreements as a “buyer” or “seller” of credit protection on liquid credit indices. In instances where the Fund is a protection seller (receives a periodic fee over the life of the contract in return for the obligation to compensate the protection buyer for loss), the Fund will assume the risks associated with credit deterioration (spread widening) as well as default risk. In the event of default, the Fund is obligated to pay the buyer of credit protection the notional value of the swap less the recovery rate on the reference asset.

ª Derivatives Risks: The Multi-Disciplinary Income Portfolio’s investments in futures, options and swaps and other derivative instruments may result in loss. Derivative instruments may be illiquid, difficult to price and leveraged so that small changes may produce disproportionate losses to the Multi-Disciplinary Income Portfolio. To the extent the Multi-Disciplinary Income Portfolio segregates assets to cover derivatives positions, the Multi-Disciplinary Income Portfolio may impair its ability to meet current obligations, to honor requests for redemption and to manage the Multi-Disciplinary Income Portfolio properly in a manner consistent with its stated investment objective.

ª Leveraging Risks: Investments in derivative instruments may give rise to a form of leverage. The Investment Adviser may engage in speculative transactions, which involve substantial risk and leverage. The use of leverage by the Investment Adviser may increase the volatility of the Multi-Disciplinary Income Portfolio. These leveraged instruments may result in losses to the Multi-Disciplinary Income Portfolio or may adversely affect the Multi-Disciplinary Income Portfolio’s NAV or total return, because instruments that contain leverage are more sensitive to changes in interest rates. The Multi-Disciplinary Income Portfolio may also have to sell assets at inopportune times to satisfy its obligations in connection with such transactions.

ª Option Transaction Risks: Purchasing and writing put and call options are highly specialized activities and entail greater than ordinary investment risks. The successful use of options depends in part on the ability of the Investment Adviser to manage future price fluctuations and the degree of correlation between the options and securities (or currency) markets. By writing put options on equity securities, the Multi-Disciplinary Income Portfolio gives up the opportunity to benefit from potential increases in the value of the common stocks above the strike prices of the written put options, but continues to bear the risk of declines in the value of its common stock portfolio. The Multi-Disciplinary Income Portfolio will receive a premium from writing a covered call option that it retains whether or not the option is exercised. The premium received from the written options may not be sufficient to offset any losses sustained from the volatility of the underlying equity securities over time.

ª Interest Rate Risk: The risk that when interest rates increase, fixed-income securities held by the Multi-Disciplinary Income Portfolio will decline in value. Long-term fixed-income securities will normally have more price volatility because of this risk than short-term fixed-income securities. It is likely there will be less governmental action in the near future to maintain low interest rates. The negative impact on fixed income securities from the resulting rate increases for that and other reasons could be swift and significant.

ª Credit/Default Risk: The risk that an issuer or guarantor of fixed-income securities held by the Multi-Disciplinary Income Portfolio (which may have low credit ratings), or the counterparty in a derivative investment, may default on its obligation to pay interest and repay principal.

ª Security Selection Risks: The Multi-Disciplinary Income Portfolio securities selected by the Investment Adviser may decline in value or not increase in value when the stock market in general is rising and may fail to meet the Multi-Disciplinary Income Portfolio’s, and therefore the Multi-Disciplinary Income Fund’s, investment objective.

ª Liquidity Risks: The Multi-Disciplinary Income Portfolio’s investments in the securities of small and medium capitalization companies and in non-investment grade fixed-income securities makes the Multi-Disciplinary Income Portfolio especially susceptible to the risk that during certain periods the liquidity of certain issuers or industries, or all securities within particular investment categories, will decrease or disappear suddenly and without warning as a result of adverse market or political events, or adverse investor perceptions.

ª Exchange-Traded Funds (ETFs) Risks: ETFs are registered investment companies whose shares are listed and traded on U.S. stock exchanges or otherwise traded in the over-the-counter market. In general, passively-managed ETFs seek to track a specified securities index or a basket of securities that an “index provider,” such as Standard & Poor’s, selects as representative of a market, market segment or industry sector. A passively-managed ETF is designed so that its performance will correspond closely with that of the index it tracks. A leveraged ETF will engage in transactions and purchase instruments that give rise to forms of leverage, including, among others, the use of reverse repurchase agreements and other borrowings, the investment of collateral from loans of portfolio securities, the use of when issued, delayed-delivery or forward commitment transactions or short sales.  To the extent a fund invests in ETFs that achieve leveraged exposure to their underlying indexes through the use of derivative instruments, the fund will indirectly be subject to leveraging risk. As a shareholder in an ETF, the Multi-Disciplinary Income Portfolio will bear its pro rata portion of an ETF’s expenses, including advisory fees, in addition to its own expenses.

ª Foreign Securities Risks: The Multi-Disciplinary Income Portfolio may invest directly in foreign debt securities or in U.S. dollar-denominated foreign debt securities through ADRs, GDRs and IDRs. Foreign securities can carry higher returns but involve more risks than those associated with U.S. investments. Additional risks associated with investment in foreign debt securities include currency fluctuations, political and economic instability, differences in financial reporting standards and less stringent regulation of securities markets.

ª Emerging Markets Risks:The risk that the securities markets of emerging countries are less liquid, are especially subject to greater price volatility, have smaller market capitalizations, have less government regulation and are not subject to as extensive and frequent accounting, financial and other reporting requirements as the securities markets of more developed countries as have historically been the case.

ª Convertible Securities Risks: Convertible securities are subject to the risks affecting both equity and fixed income securities, including market, credit, liquidity and interest rate risk.

ª Management Risks: There is no guarantee that the Multi-Disciplinary Income Fund will meet its investment objective. The Investment Adviser does not guarantee the performance of the Multi-Disciplinary Income Fund, nor can it assure you that the market value of your investment will not decline.

ª Sector Concentration Risk: Although the Multi-Disciplinary Income Portfolio will not concentrate its investments in any industries, the Multi-Disciplinary Income Portfolio may, at certain times, have concentrations in one or more sectors which may cause the Portfolio to be more sensitive to economic changes or events occurring in those sectors. As of December 31, 2018, the Portfolio had 21.0% invested in the Construction sector.

Who may want to invest?

The Multi-Disciplinary Income Fund may be appropriate for investors who:

ª wish to diversify their portfolios;

ª wish to generate income and capital;

ª wish to invest for the long-term; and

ª are comfortable with the risks described herein.

Performance

The bar chart and table shown below illustrate the variability of the Multi-Disciplinary Income Fund’s returns. The bar chart indicates the risks of investing in the Multi-Disciplinary Income Fund by showing the changes in the Multi-Disciplinary Income Fund’s performance from year to year (on a calendar year basis). The table shows how the Multi-Disciplinary Income Fund’s average annual returns, before and after taxes (after taking into account any sales charges) compare with those of the Bloomberg Barclays U.S. Aggregate Bond Index and Bloomberg Barclays U.S. Corporate High Yield Bond Index, which represent broad measures of market performance.The past performance of the Multi-Disciplinary Income Fund, before and after taxes, is not necessarily an indication of how the Multi-Disciplinary Income Fund or the Multi-Disciplinary Income Portfolio will perform in the future.Performance reflects fee waivers in place. If fee waivers were not in place, the Multi-Disciplinary Income Fund’s performance would be reduced. The bar chart shows how the performance of Advisor Class A shares (the Class with the longest period of annual returns) has varied from year to year. The returns for Advisor Class C shares were different than the returns shown below because each Class of shares has different expenses. Updated performance information is available on the Fund’s website athttp://www.kineticsfunds.comor by calling the Fund toll-free at (800) 930-3828.

Sales charges are not reflected in the bar chart. If these amounts were reflected, returns would be less than those shown.

The Multi-Disciplinary Income Fund – Advisor Class A Calendar Year Returns as of 12/31

Best Quarter:	2012	Q1	10.43%
Worst Quarter:	2011	Q3	-12.33%

Average Annual Total Returns as of 12/31/2018

The after-tax returns for the Multi-Disciplinary Income Fund’s Advisor Class A shares as shown in the following table are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.Your actual after-tax returns depend on your tax situation and may differ from those shown. If you own Fund shares in a tax-deferred account, such as a 401(k) plan or an individual retirement account (“IRA”), the information on after-tax returns is not relevant to your investment.After-tax returns are shown for Advisor Class A shares only. After-tax returns for Advisor Class C shares will differ.The Return After Taxes on Distributions and Sale of Fund Shares is higher than other return figures when a capital loss occurs upon the redemption of Fund shares.

Average Annual Total Returns - Advisor A & C Prospectus - Kinetics Multi-Disciplinary Income Fund - Advisor A & C Prospectus	Label	1 Year		5 Years		10 Years		Since Inception		Inception Date
Bloomberg Barclays US Aggregate Bond Index (reflects no deduction for fees, expenses or taxes)	Bloomberg Barclays U.S. Aggregate Bond Index (reflects no deductions for fees, expenses or taxes)	0.01%		2.52%		3.48%		3.51%		Feb. 11, 2008
Bloomberg Barclays U.S. Corporate High Yield Bond Index (reflects no deductions for fees, expenses or taxes)	Bloomberg Barclays U.S. Corporate High Yield Bond Index (reflects no deductions for fees, expenses or taxes)	(2.08%)		3.83%		11.12%		7.40%		Feb. 11, 2008
Advisor Class A	The Multi-Disciplinary Income Fund (KMDAX) Class A Return Before Taxes	(6.88%)		1.31%		5.87%		3.48%		Feb. 11, 2008
Advisor Class A | After Taxes on Distributions	The Multi-Disciplinary Income Fund (KMDAX) Class A Return After Taxes on Distributions	(8.36%)		(0.21%)		4.27%		2.04%
Advisor Class A | After Taxes on Distributions and Sales	The Multi-Disciplinary Income Fund (KMDAX) Class A Return After Taxes on Distributions and Sale of Fund Shares	(4.06%)	[1]	0.31%	[1]	3.96%	[1]	2.09%	[1]
Advisor Class C	The Multi-Disciplinary Income Fund (KMDCX) Class C Return Before Taxes	(2.77%)		2.00%		5.95%		3.51%		Feb. 11, 2008

[1] This table and the example below reflect the aggregate expenses of the Alternative Income Fund and the Alternative Income Portfolio. The management fees paid by the Alternative Income Fund reflect the proportionate share of fees allocated to the Alternative Income Fund from the Alternative Income Portfolio.

[1] This table and the example below reflect the aggregate expenses of the Alternative Income Fund and the Alternative Income Portfolio. The management fees paid by the Alternative Income Fund reflect the proportionate share of fees allocated to the Alternative Income Fund from the Alternative Income Portfolio.

[2] The Board of Directors (the “Board”) of Kinetics Mutual Funds, Inc. has approved a Rule 12b-1 Distribution Plan that allows the Fund to pay up to 0.50% and 0.75% of the average daily net asset value (“NAV”) of the Advisor Class A shares and Advisor Class C shares as compensation to the distributor or other qualified recipients, pursuant to the Plan. However, at the present time, the Fund is only assessing 0.25% and 0.75% under the Rule 12b-1 Distribution Plan for Advisor Class A shares and Advisor Class C shares, respectively. In addition, the Board has approved a Shareholder Servicing Plan for Advisor Class A shares and Advisor Class C shares that provides for an annual shareholder servicing fee equal to 0.25% of the average daily net assets attributable to Advisor Class A shares and Advisor Class C shares.

[3] Total Annual Fund Operating Expenses do not correlate to the ratio of operating expenses to average net assets before expense reimbursement found in the “Financial Highlights” section of this Prospectus, which reflects the Alternative Income Fund’s operating expenses and does not include acquired fund fees and expenses (“AFFE”).

[4] Horizon Kinetics Asset Management LLC, the investment adviser to the Alternative Income Portfolio of the Kinetics Portfolio Trust (the “Investment Adviser”), has agreed to waive management fees and reimburse Fund expenses so that Net Annual Fund Operating Expenses do not exceed 1.20% and 1.70%, excluding AFFE, for Advisor Class A shares and Advisor Class C shares, respectively. These waivers and reimbursements are in effect until May 1, 2020, and may not be terminated without the approval of the Board.

[1] In some cases, the Return After Taxes on Distributions and Sale of Fund Shares may exceed the Return After Taxes on Distributions or Return Before Taxes due to an assumed benefit from any losses on a sale of Fund shares at the end of the measurement period.

[1] This table and the example below reflect the aggregate expenses of the Internet Fund and the Internet Portfolio. The management fees paid by the Internet Fund reflect the proportionate share of fees allocated to the Internet Fund from the Internet Portfolio.

[1] This table and the example below reflect the aggregate expenses of the Internet Fund and the Internet Portfolio. The management fees paid by the Internet Fund reflect the proportionate share of fees allocated to the Internet Fund from the Internet Portfolio.

[2] The Board of Directors (the “Board”) of Kinetics Mutual Funds, Inc. has approved a Rule 12b-1 Distribution Plan that allows the Fund to pay up to 0.50% and 0.75% of the average daily net asset value (“NAV”) of the Advisor Class A shares and Advisor Class C shares as compensation to the distributor or other qualified recipients, pursuant to the Plan. However, at the present time, the Fund is only assessing 0.25% and 0.75% under the Rule 12b-1 Distribution Plan for Advisor Class A shares and Advisor Class C shares, respectively. In addition, the Board has approved a Shareholder Servicing Plan for Advisor Class A shares and Advisor Class C shares that provides for an annual shareholder servicing fee equal to 0.25% of the average daily net assets attributable to Advisor Class A shares and Advisor Class C shares. At the present time, the Fund is assessing, 0.25% and 0.75% of the distribution fees for Advisor Class A shares and Advisor Class C shares, respectively, and is assessing 0.25% of the shareholder servicing fees for Advisor Class A shares and Advisor Class C shares.

[1] The Internet Fund’s Advisor Class A shares commenced operations on April 26, 2001 and Advisor Class C shares commenced operations on February 16, 2007. The returns for the two indices in this column have been calculated since the inception date of the Internet Fund’s Advisor Class A shares and Advisor Class C shares, as applicable.

[2] In some cases, the Return After Taxes on Distributions and Sale of Fund Shares may exceed the Return After Taxes on Distributions or Return Before Taxes due to an assumed benefit from any losses on a sale of Fund shares at the end of the measurement period.

[1] This table and the example below reflect the aggregate expenses of the Global Fund and the Global Portfolio. The management fees paid by the Global Fund reflect the proportionate share of fees allocated to the Global Fund from the Global Portfolio.

[1] This table and the example below reflect the aggregate expenses of the Global Fund and the Global Portfolio. The management fees paid by the Global Fund reflect the proportionate share of fees allocated to the Global Fund from the Global Portfolio.

[2] The Board of Directors (the “Board”) of Kinetics Mutual Funds, Inc. has approved a Rule 12b-1 Distribution Plan that allows the Fund to pay up to 0.50% and 0.75% of the average daily net asset value (“NAV”) of the Advisor Class A shares and Advisor Class C shares as compensation to the distributor or other qualified recipients, pursuant to the Plan. However, at the present time, the Fund is only assessing 0.25% and 0.75% under the Rule 12b-1 Distribution Plan for Advisor Class A shares and Advisor Class C shares, respectively. In addition, the Board has approved a Shareholder Servicing Plan for Advisor Class A shares and Advisor Class C shares that provides for an annual shareholder servicing fee equal to 0.25% of the average daily net assets attributable to Advisor Class A shares and Advisor Class C shares.

[3] Horizon Kinetics Asset Management LLC, the investment adviser to the Global Portfolio of the Kinetics Portfolio Trust (the “Investment Adviser”), has agreed to waive management fees and reimburse Fund expenses so that Total Annual Fund Operating Expenses after Fee Waiver and/or Expense Reimbursements do not exceed 1.64% and 2.14%, excluding AFFE, for the Advisor Class A shares and Advisor Class C shares, respectively. These waivers and reimbursements are in effect until May 1, 2020, and may not be terminated without the approval of the Board.

[1] In some cases, the Return After Taxes on Distributions and Sale of Fund Shares may exceed the Return After Taxes on Distributions or Return Before Taxes due to an assumed benefit from any losses on a sale of Fund shares at the end of the measurement period.

[1] This table and the example below reflect the aggregate expenses of the Paradigm Fund and the Paradigm Portfolio. The management fees paid by the Paradigm Fund reflect the proportionate share of fees allocated to the Paradigm Fund from the Paradigm Portfolio.

[1] This table and the example below reflect the aggregate expenses of the Paradigm Fund and the Paradigm Portfolio. The management fees paid by the Paradigm Fund reflect the proportionate share of fees allocated to the Paradigm Fund from the Paradigm Portfolio.

[2] The Board of Directors (the “Board”) of Kinetics Mutual Funds, Inc. has approved a Rule 12b-1 Plan that allows the Fund to pay up to 0.50% and 0.75% of the average daily net asset value (“NAV”) of the Advisor Class A shares and Advisor Class C shares as compensation to the distributor or other qualified recipients, pursuant to the Plan. However, at the present time, the Fund is only assessing 0.25% and 0.75% under the Rule 12b-1 Distribution Plan for Advisor Class A shares and Advisor Class C shares, respectively. In addition, the Board has approved a Shareholder Servicing Plan for Advisor Class A shares and Advisor Class C shares that provides for an annual shareholder servicing fee equal to 0.25% of the average daily net assets attributable to Advisor Class A shares and Advisor Class C shares.

[3] Horizon Kinetics Asset Management LLC, the investment adviser to the Paradigm Portfolio of the Kinetics Portfolio Trust (the “Investment Adviser”), has agreed to waive management fees and reimburse Fund expenses so that Total Annual Fund Operating Expenses after Fee Waiver and/or Expense Reimbursements do not exceed 1.89% and 2.39%, excluding acquired fund fees and expenses (“AFFE”), for Advisor Class A shares and Advisor Class C shares, respectively. These waivers and reimbursements are in effect until May 1, 2020, and may not be terminated without the approval of the Board.

[1] The Paradigm Fund’s Advisor Class A shares commenced operations on April 26, 2001 and Advisor Class C shares commenced operations on June 28, 2002. The returns for the two indices in this column have been calculated since the inception date of the Paradigm Fund’s Advisor Class A shares and Advisor Class C shares, as applicable.

[2] In some cases, the Return After Taxes on Distributions and Sale of Fund Shares may exceed the Return After Taxes on Distributions or Return Before Taxes due to an assumed benefit from any losses on a sale of Fund shares at the end of the measurement period.

[1] This table and the example below reflect the aggregate expenses of the Medical Fund and the Medical Portfolio. The management fees paid by the Medical Fund reflect the proportionate share of fees allocated to the Medical Fund from the Medical Portfolio.

[1] This table and the example below reflect the aggregate expenses of the Medical Fund and the Medical Portfolio. The management fees paid by the Medical Fund reflect the proportionate share of fees allocated to the Medical Fund from the Medical Portfolio.

[2] The Board of Directors (the “Board”) of Kinetics Mutual Funds, Inc. has approved a Rule 12b-1 Distribution Plan that allows the Fund to pay up to 0.50% and 0.75% of the average daily net asset value (“NAV”) of the Advisor Class A shares and Advisor Class C shares as compensation to the distributor or other qualified recipients, pursuant to the Plan. However, at the present time, the Fund is only assessing 0.25% and 0.75% under the Rule 12b-1 Distribution Plan for Advisor Class A shares and Advisor Class C shares, respectively. In addition, the Board has approved a Shareholder Servicing Plan for Advisor Class A shares and Advisor Class C shares that provides for an annual shareholder servicing fee equal to 0.25% of the average daily net assets attributable to Advisor Class A shares and Advisor Class C shares.

[3] Horizon Kinetics Asset Management LLC, the investment adviser to the Medical Portfolio of the Kinetics Portfolio Trust (the “Investment Adviser”), has agreed to waive management fees and reimburse Fund expenses so that Total Annual Fund Operating Expenses after Fee Waiver and/or Expense Reimbursements do not exceed 1.64% and 2.14%, excluding acquired fund fees and expenses (“AFFE”), for Advisor Class A shares and Advisor Class C shares, respectively. These waivers and reimbursements are in effect until May 1, 2020, and may not be terminated without the approval of the Board.

[1] The Medical Fund’s Advisor Class A shares commenced operations on April 26, 2001 and Advisor Class C shares commenced operations on February 16, 2007. The returns for the two indices in this column have been calculated since the inception date of the Medical Fund’s Advisor Class A shares and Advisor Class C shares, as applicable.

[2] In some cases, the Return After Taxes on Distributions and Sale of Fund Shares may exceed the Return After Taxes on Distributions or Return Before Taxes due to an assumed benefit from any losses on a sale of Fund shares at the end of the measurement period.

[1] This table and the example below reflect the aggregate expenses of the Small Cap Fund and the Small Cap Opportunities Portfolio (the “Small Cap Portfolio”). The management fees paid by the Small Cap Fund reflect the proportionate share of fees allocated to the Small Cap Fund from the Small Cap Portfolio.

[1] This table and the example below reflect the aggregate expenses of the Small Cap Fund and the Small Cap Opportunities Portfolio (the “Small Cap Portfolio”). The management fees paid by the Small Cap Fund reflect the proportionate share of fees allocated to the Small Cap Fund from the Small Cap Portfolio.

[2] The Board of Directors (the “Board”) of Kinetics Mutual Funds, Inc. has approved a Rule 12b-1 Distribution Plan that allows the Fund to pay up to 0.50% and 0.75% of the average daily net asset value (“NAV”) of the Advisor Class A shares and Advisor Class C shares as compensation to the distributor or other qualified recipients, pursuant to the Plan. However, at the present time, the Fund is only assessing 0.25% and 0.75% under the Rule 12b-1 Distribution Plan for Advisor Class A shares and Advisor Class C shares, respectively. In addition, the Board has approved a Shareholder Servicing Plan for Advisor Class A and Advisor Class C shares that provides for an annual shareholder servicing fee equal to 0.25% of the average daily net assets attributable to Advisor Class A shares and Advisor Class C shares.

[3] Total Annual Fund Operating Expenses do not correlate to the ratio of operating expenses to average net assets before expense reimbursement found in the “Financial Highlights” section of this Prospectus which reflect the Small Cap Fund’s operating expenses and does not include acquired fund fees and expenses (“AFFE”).

[4] Horizon Kinetics Asset Management LLC, the investment adviser to the Small Cap Portfolio of the Kinetics Portfolio Trust (the “Investment Adviser”), has agreed to waive management fees and reimburse Fund expenses so that Total Annual Fund Operating Expenses after Fee Waiver and/or Expense Reimbursements do not exceed 1.89% and 2.39%, excluding AFFE, for Advisor Class A shares and Advisor Class C shares, respectively. These waivers and reimbursements are in effect until May 1, 2020, and may not be terminated without the approval of the Board.

[1] The Small Cap Opportunities Fund’s Advisor Class A shares commenced operations on December 31, 2001 and Advisor Class C shares commenced operations on February 16, 2007. The returns for the two indices in this column have been calculated since the inception date of Advisor Class A shares and Advisor Class C shares, as applicable.

[2] In some cases, the Return After Taxes on Distributions and Sale of Fund Shares may exceed the Return After Taxes on Distributions or Return Before Taxes due to an assumed benefit from any losses on a sale of Fund shares at the end of the measurement period.

[1] The expense information has been restated to reflect current fees.

[1] The expense information has been restated to reflect current fees.

[2] This table and the example below reflect the aggregate expenses of the Market Opportunities Fund and the Market Opportunities Portfolio. The management fees paid by the Market Opportunities Fund reflect the proportionate share of fees allocated to the Market Opportunities Fund from the Market Opportunities Portfolio.

[3] The Board of Directors (the “Board”) of Kinetics Mutual Funds, Inc. has approved a Rule 12b-1 Distribution Plan that allows the Fund to pay up to 0.50% and 0.75% of the average daily net asset value (“NAV”) of the Advisor Class A shares and Advisor Class C shares as compensation to the distributor or other qualified recipients, pursuant to the Plan. However, at the present time, the Fund is only assessing 0.25% and 0.75% under the Rule 12b-1 Distribution Plan for Advisor Class A shares and Advisor Class C shares, respectively. In addition, the Board has approved a Shareholder Servicing Plan for Advisor Class A shares and Advisor Class C shares that provides for an annual shareholder servicing fee equal to 0.25% of the average daily net assets attributable to Advisor Class A shares and Advisor Class C shares.

[4] Horizon Kinetics Asset Management LLC, the investment adviser to the Market Opportunities Portfolio of the Kinetics Portfolio Trust (the “Investment Adviser”), has agreed to waive management fees and reimburse Fund expenses so that Total Annual Fund Operating Expenses after Fee Waiver and/or Expense Reimbursements do not exceed 1.65% and 2.15% of the Fund’s average daily net assets, excluding acquired fund fees and expenses (“AFFE”), taxes, brokerage commissions, extraordinary items and interest, for Advisor Class A shares and Advisor Class C shares, respectively. The Fund may have to repay the Investment Adviser some of these amounts waived or reimbursed within three years if total operating expenses fall below the expense cap described above. Such repayments are subject to approval by the Board of Trustees, and amounts recaptured under the agreement, if any, are limited to the lesser of (i) the expense limitation in effect at the time of the waiver or reimbursement and (ii) the expense limitation in effect at the time of the recapture. These waivers and reimbursements are in effect until May 1, 2022, and may not be terminated without the approval of the Board.

[1] The Market Opportunities Fund’s Advisor Class A shares commenced operations on January 31, 2006 and Advisor Class C share commenced operations on February 16, 2007. The returns for the two indices in this column have been calculated since the inception date of Advisor Class A shares and Advisor Class C shares, as applicable.

[2] In some cases, the Return After Taxes on Distributions and Sale of Fund Shares may exceed the Return After Taxes on Distributions or Return Before Taxes due to an assumed benefit from any losses on a sale of Fund shares at the end of the measurement period.

[1] This table and the example below reflect the aggregate expenses of the Multi-Disciplinary Income Fund and the Multi-Disciplinary Income Portfolio. The management fees paid by the Multi-Disciplinary Income Fund reflect the proportionate share of fees allocated to the Multi-Disciplinary Income Fund from the Multi-Disciplinary Income Portfolio.

[1] This table and the example below reflect the aggregate expenses of the Multi-Disciplinary Income Fund and the Multi-Disciplinary Income Portfolio. The management fees paid by the Multi-Disciplinary Income Fund reflect the proportionate share of fees allocated to the Multi-Disciplinary Income Fund from the Multi-Disciplinary Income Portfolio.

[2] The Board of Directors (the “Board”) of Kinetics Mutual Funds, Inc. has approved a Rule 12b-1 Distribution Plan that allows the Fund to pay up to 0.50% and 0.75% of the average daily net asset value (“NAV”) of the Advisor Class A shares and Advisor Class C shares as compensation to the distributor or other qualified recipients, pursuant to the Plan. However, at the present time, the Fund is only assessing 0.25% and 0.75% under the Rule 12b-1 Distribution Plan for Advisor Class A shares and Advisor Class C shares, respectively. In addition, the Board has approved a Shareholder Servicing Plan for Advisor Class A shares and Advisor Class C shares that provides for an annual shareholder servicing fee equal to 0.25% of the average daily net assets attributable to Advisor Class A shares and Advisor Class C shares.

[3] Total Annual Fund Operating Expenses do not correlate to the ratio of operating expenses to average net assets before expense reimbursement found in the “Financial Highlights” section of this Prospectus which reflects the Multi-Disciplinary Income Fund’s operating expenses and does not include acquired fund fees and expenses (“AFFE”).

[4] Horizon Kinetics Asset Management LLC, the investment adviser to the Multi-Disciplinary Income Portfolio of the Kinetics Portfolio Trust (the “Investment Adviser”), has agreed to waive management fees and reimburse Fund expenses so that Total Annual Fund Operating Expenses after Fee Waiver and/or Expense Reimbursements do not exceed 1.74% and 2.24%, excluding AFFE and interest expense on securities sold short, for Advisor Class A shares and Advisor Class C shares, respectively. These waivers and reimbursements are in effect until May 1, 2020, and may not be terminated without the approval of the Board.

[1] In some cases, the Return After Taxes on Distributions and Sale of Fund Shares may exceed the Return After Taxes on Distributions or Return Before Taxes due to an assumed benefit from any losses on a sale of Fund shares at the end of the measurement period.