November 2010   Preliminary Terms No. 590 Registration Statement No. 333-156423 Dated November 16, 2010 Filed pursuant to Rule 433

INTEREST RATE STRUCTURED PRODUCTS

Senior Floating Rate Notes due 2019

SIFMA Municipal Swap Index and LIBOR Accrual Notes

As further described below, interest will accrue quarterly during the nine-year term of the notes at a variable rate equal to 3-Month USD LIBOR plus 1.25% per annum plus contingent interest equal to 1.25% per annum for each day that the avgSIFMA/LIBOR quotient is less than 70%.  As more fully described herein, the relationship between the SIFMA municipal swap index and LIBOR depends on a variety of factors, including effective tax rates and the tax-exempt status of, and supply and demand for, municipal securities.  All payments on the notes, including the repayment of principal, are subject to the credit risk of Morgan Stanley.

SUMMARY TERMS
Issuer:	Morgan Stanley
Aggregate principal amount:	$                    .  May be increased prior to the original issue date but we are not required to do so.
Issue price:	$1,000 per note
Stated principal amount:	$1,000 per note
Pricing date:	November    , 2010
Original issue date:	November 30, 2010 (3 business days after the pricing date)
Maturity date:	November 30, 2019
Interest accrual date:	November 30, 2010
Payment at maturity:	The payment at maturity per note will be the stated principal amount plus accrued and unpaid interest, if any.
Interest:	For each interest payment period, a variable rate per annum equal to: LIBOR reference rate +1.25%+ (1.25% per annum times N/ACT); where “N” = the total number of calendar days in the applicable interest payment period on which the avgSIFMA/LIBOR quotient is less than 70%; and “ACT” = the total number of calendar days in the applicable interest payment period. We refer to the variable interest of 1.25% per annum times N/ACT as the contingent interest. If on any calendar day during an interest payment period the avgSIFMA/LIBOR quotient is equal to or greater than 70%, no contingent interest will accrue for that day. Accordingly, you will not know the interest rate applicable to any interest payment period until the end of such interest payment period. Interest will not be greater than 8.00% per annum or less than 3.00% per annum in any quarterly interest payment period.
AvgSIFMA/LIBOR quotient:	On any day during an interest payment period, average SIFMA divided by the LIBOR reference rate, in each case, as of such date.
Interest payment period:	Each quarterly period from and including the original issue date or the preceding interest payment period end date, as applicable, to but excluding the next succeeding interest payment period end date. See “Interest payment dates” below.
Interest payment period end dates:	Each February 26, May 28, August 28 and November 28, beginning February 26, 2011.  See “Interest payment dates” below.
Interest payment dates:	Each February 28, May 30, August 30 and November 30, beginning February 28, 2011, which are in each case two calendar days following the related interest payment period end date.  If any scheduled interest payment date is not a business day, then the interest payment date will be postponed to the next business day.  The interest payment date for the final interest payment period will be the maturity date.
Average SIFMA:	For any calendar day during an interest payment period, the non-compounded daily weighted average of all the values of the SIFMA index within the period beginning on and including the day 90 calendar days preceding such calendar day to and including such calendar day.
SIFMA index:	The Securities Industry and Financial Markets Association (“SIFMA”) Municipal Swap Index.  Please see “Additional Provisions—SIFMA Index—What is the SIFMA Index?” on page 3 below.
LIBOR reference rate:	For the purpose of determining the level of the LIBOR reference rate applicable to an interest payment period, LIBOR reference rate will be the value of 3-Month USD-LIBOR-BBA in effect two London banking days prior to the related interest reset date at the start of such interest payment period (each an “interest determination date”). For the purpose of determining AvgSIFMA/LIBOR quotient on any calendar day during an interest payment period, LIBOR reference rate will be the value of 3-Month USD-LIBOR-BBA in effect two London banking days prior to the 90th calendar date prior to such calendar day.  Please see “Additional Provisions—LIBOR Reference Rate—3-Month LIBOR” on page 4 below.
	Terms continued on the following page
Agent:	Morgan Stanley & Co. Incorporated (“MS & Co.”), a wholly owned subsidiary of Morgan Stanley.  See “Supplemental Information Concerning Plan of Distribution; Conflicts of Interest.”
Commissions and issue price:	Price to public	Agent’s commissions(1)	Proceeds to Issuer
Per Note	100%	%	%
Total	$	$	$

(1) Selected dealers, including Morgan Stanley Smith Barney LLC (an affiliate of the Agent), and their financial advisors, will collectively receive from the Agent, MS & Co., a fixed sales commission of         % for each note they sell. See “Supplemental Information Concerning Plan of Distribution; Conflicts of Interest.” For additional information, see “Plan of Distribution” in the accompanying prospectus supplement.

You should read this document together with the related prospectus supplement and prospectus, each of which can be accessed via the hyperlinks below, before you decide to invest.

Prospectus Supplement dated December 23, 2008

Prospectus dated December 23, 2008

The notes are not bank deposits and are not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency, nor are they obligations of, or guaranteed by, a bank.

The issuer has filed a registration statement (including a prospectus) with the SEC for the offering to which this communication relates.  Before you invest, you should read the prospectus in that registration statement and other documents the issuer has filed with the SEC for more complete information about the issuer and this offering.  You may get these documents for free by visiting EDGAR on the SEC Web site at.www.sec.gov. Alternatively, the issuer, any underwriter or any dealer participating in this offering will arrange to send you the prospectus if you request it by calling toll-free 1-800-584-6837.

FWP: MSPRB1208006

Senior Floating Rate Notes due 2019

SIFMA Municipal Swap Index and LIBOR Accrual Notes

Terms continued from previous page:
Calculation agent:	Morgan Stanley Capital Services Inc.	Trustee:  The Bank of New York Mellon
Business day:	New York
Day-count convention:	30/360
Specified currency:	U.S. dollars
CUSIP:	61745E4X6
ISIN:	US61745E4X63
Book-entry or certificated note:	Book-entry

The Notes

The notes offered are debt securities of Morgan Stanley.  Interest will accrue quarterly at a rate equal to LIBOR reference rate plus 1.25% per annum plus contingent interest at a rate of 1.25% per annum that accrues only on each day that the quotient of average SIFMA over the LIBOR reference rate, which we refer to as the “avgSIFMA/LIBOR quotient,” is less than 70%. The SIFMA index, on which average SIFMA is based, is an indicator of the short term borrowing costs of high grade tax-exempt municipalities and other tax-exempt entities.  The LIBOR reference rate is an indicator of short term taxable interest rates.  If the avgSIFMA/LIBOR quotient for any calendar day in an interest payment period is equal to or greater than 70%, the notes will not accrue any contingent interest for such date.

We describe the basic features of these notes in the sections of the accompanying prospectus called “Description of Debt Securities—Floating Rate Debt Securities” and prospectus supplement called “Description of Notes,” subject to and as modified by the provisions described herein. All payments on the notes, including repayment of principal, are subject to the credit risk of Morgan Stanley.

The relationship between the Securities Industry and Financial Markets Association Municipal Swap Index (the “SIFMA index”) and LIBOR depends on a variety of factors, including effective tax rates and the tax-exempt status and creditworthiness of, and supply and demand for, the tax-exempt securities included in the SIFMA index, which we refer to as municipal securities.  Since these municipal securities are exempt from federal taxation and state taxation in the state of issuance, the interest rates on municipal securities have historically tended to be lower than the interest rates on taxable investments, including LIBOR.

As a general matter, the tax-exempt status of municipal securities is more attractive to investors in times of higher effective tax rates as investors assess the untaxed return on those securities as compared to the after-tax return on taxable investments.  Absent other factors, interest rates on municipal securities tend to be lower relative to taxable interest rates in times of higher effective tax rates since higher taxes result in a lower after-tax return on taxable investments.  In times of lower effective tax rates, the opposite occurs and tax exempt interest rates have tended to rise in comparison to interest rates on taxable investments.  However, many other factors, including changes to the tax exempt status of municipal securities at the federal or state level, supply and demand for municipal securities, perceptions of lower creditworthiness of municipal securities compared to other debt securities and “yield compression” (the tendency of taxable and tax-exempt interest rates to converge as the rates decline in absolute terms), affect the relationship between tax-exempt and taxable interest rates.  See  “Historical Information” on page 5 below.  For more information generally on the risks associated with an investment linked to the relationship between the SIFMA index and the LIBOR reference rate, see “Risk Factors” on page 8 below.

The stated principal amount and issue price of each note is $1,000. The issue price of the notes includes the agent’s commissions paid with respect to the notes as well as the cost of hedging our obligations under the notes.  The cost of hedging includes the projected profit that our subsidiaries may realize in consideration for assuming the risks inherent in managing the hedging transactions.  This cost of hedging could be significant due to the term of the notes and the tailored exposure provided by the notes.  The secondary market price, if any, at which MS & Co. is willing to purchase the notes, is expected to be affected adversely by the inclusion of these commissions and hedging costs in the issue price.  In addition, the secondary market price may be lower due to the costs of unwinding the related hedging transactions at the time of the secondary market transaction.  See “Risk Factors—Market Risk—The Inclusion Of Commissions And Projected Profit From Hedging In The Original Issue Price Is Likely To Adversely Affect Secondary Market Prices.”

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Summary of Selected Key Risks (see page 8)

§ The amount of interest payable on the notes is uncertain, as investors may not receive the contingent interest and may only receive an interest rate equal to LIBOR reference rate plus 1.25%.

§ The amount of interest payable on the notes in any quarterly interest payment period will not exceed 8.00% per annum for any quarterly interest payment period.

§ There are various factors affecting the avgSIFMA/LIBOR quotient, including marginal tax rates, the tax-exempt status of municipal securities, the tax treatment of comparable securities, the creditworthiness of municipal securities, supply and demand for municipal securities, remarketing practices and the absolute level of interest rates (yield compression).

§ For the purpose of determining avgSIFMA/LIBOR quotient on a calendar day, the LIBOR reference rate is the rate in effect two London banking days prior to the 90th calendar date prior to the date the avgSIFMA/LIBOR quotient is determined.

§ Changes to government policy are likely to apply over multiple interest payment periods.

§ The historical performance of average SIFMA and the LIBOR reference rate are not an indication of their future performance.

§ Investing in the notes is not equivalent to investing in the SIFMA index and interest on the notes is not tax-exempt.

§ Investors are subject to our credit risk, and any actual or anticipated changes to our credit ratings and credit spreads may adversely affect the market value of the notes.

§ The price at which the notes may be resold prior to maturity will depend on a number of factors and may be substantially less than the amount for which they were originally purchased.

§ The inclusion of commissions and projected profit from hedging in the original issue price is likely to adversely affect secondary market prices.

§ The notes will not be listed on any securities exchange and secondary trading may be limited.

§ The issuer, its subsidiaries or affiliates may publish research that could affect the market value of the notes. They also expect to hedge the issuer’s obligations under the notes.

§ The calculation agent, which is a subsidiary of the issuer, will make determinations with respect to the notes.

Additional Provisions

SIFMA Index

What is the SIFMA Index?

The SIFMA index is produced by Municipal Market Data (“MMD”), a Thompson Financial Services company. The SIFMA index is a seven-day high grade market index comprised of tax-exempt variable-rate demand obligations from MMD’s database of variable-rate demand obligation issuances. The SIFMA index level is the non-weighted average of the weekly rates of various variable-rate demand obligations included in the SIFMA index.  The SIFMA index is an indicator of the short term borrowing costs of high grade tax-exempt municipalities and other tax-exempt entities.

The SIFMA index level is published on Thursday of each week (or any other single day of the week specified by SIFMA (or its successor) on which the SIFMA index values are reported, as determined by the calculation agent), or if such Thursday (or other day) is not a U.S. government securities business day, the next succeeding U.S. government securities business day (each such date of publication, a “SIFMA index reset date”).  If no value for the SIFMA index is reported on any SIFMA index reset date, the value will be determined in accordance with “—SIFMA Index Fallback Mechanics” below.

SIFMA and MMD obtain and gather the information and data contained in its SIFMA Index from sources considered reliable.  However, SIFMA and MMD do not guarantee the accuracy or completeness of the SIFMA Index. The SIFMA Index does not constitute a recommendation to buy or sell securities of any kind. SIFMA and MMD make no warranties, expressed or implied,

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as to merchantability or fitness for a particular purpose or any other matter. SIFMA and MMD assume no responsibility, and shall not be liable, for any damages, direct or indirect, consequential or compensatory, including, but not limited to, lost profits arising out the provision of the SIFMA Index by SIFMA and MMD.

SIFMA and MMD are acting as information provider only, and have no opinion or affiliation pertaining to this particular offering or product.

Average SIFMA

For any calendar day during an interest payment period, the non-compounded daily weighted average of all the values of the SIFMA index within the period beginning on and including the day 90 calendar days preceding such calendar day to and including such calendar day.

SIFMA Index Fallback Mechanics

If, on any SIFMA index reset date, MMD has discontinued production of the SIFMA index and MMD or another entity produces a successor or substitute index that the calculation agent determines, in its sole discretion, to be comparable to the SIFMA index, then the value of the SIFMA index will be determined by reference to the value of that index (such index being referred to herein as a “successor index”). The calculation agent is permitted to consider indices calculated and published by MS & Co. or any of its affiliates.  If MMD discontinues production of the SIFMA index and the calculation agent determines that there is no appropriate successor index on any date of determination of the value of the SIFMA index, the value to be substituted for the index for that date will be a value computed by the calculation agent in its sole and absolute discretion (acting in good faith) for that date in accordance with the procedures last used to calculate the SIFMA index prior to any such discontinuance based upon information relating to the relevant municipal securities that the calculation agent can obtain using its commercially reasonable efforts.  See “Risk Factors—The Calculation Agent, Which Is A Subsidiary Of The Issuer, Will Make Determinations With Respect To The Notes.”

U.S. Government Securities Business Day

U.S. government securities business day means any day except for a Saturday, Sunday or a day on which SIFMA recommends that the fixed income departments of its members be closed for the entire day for purposes of trading in U.S. government securities.

LIBOR Reference Rate

3-Month LIBOR

“LIBOR” as defined in the accompanying prospectus in the section called “Description of Debt Securities—Floating Rate Debt Securities” and “—Base Rates” with an index maturity of 3 months and an index currency of US dollars and as displayed on Reuters Page LIBOR01.

For the purpose of determining the level of the LIBOR reference rate applicable to an interest payment period, the LIBOR reference rate is the value of 3-Month USD-LIBOR-BBA in effect two London banking days prior to the related interest reset date at the start of such interest payment period (each an “interest determination date”).

For the purpose of determining AvgSIFMA/LIBOR quotient on any calendar day during an interest payment period, the LIBOR reference rate is the value of 3-Month USD-LIBOR-BBA in effect two London banking days prior to the 90th calendar date prior to such calendar day.  See “Risk Factors— For The Purpose Of Determining AvgSIFMA/LIBOR Quotient On A Calendar Day, the LIBOR Reference Rate Is The Rate In Effect Two London Banking Days Prior To The 90th Calendar Date Prior To The Date The AvgSIFMA/LIBOR Quotient Is Determined.”

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Historical Information

Average SIFMA, LIBOR Reference Rate and avgSIFMA/LIBOR Quotient

The following graphs set forth (i) the historical average SIFMA and the historical LIBOR reference rate and (ii) the historical avgSIFMA/LIBOR quotient, in each case for the period from January 1, 1995 to November 1, 2010 (the “historical period”).  The historical levels of the LIBOR reference rate do not reflect the 1.25% spread that will apply to the interest that accrues on the notes for each interest payment period during the term of the notes. None of the historical average SIFMA, historical LIBOR reference rate or the historical avgSIFMA/LIBOR quotient should be taken as an indication of their future performance. We cannot give you any assurance that the avgSIFMA/LIBOR quotient will be less than 70%, such that the contingent 1.25% per annum interest rate will accrue on each or any calendar day during an interest payment period.  For every calendar day during an interest payment period for which contingent interest does not accrue, you will receive proportionately less than 8.00% per annum for that interest payment period, and you will receive LIBOR reference rate plus 1.25% per annum if contingent interest does not accrue on any day during that interest payment period, subject to the minimum interest rate of 3.00% per annum.  See “Hypothetical Examples” below.  We obtained the information in the graphs below from Bloomberg Financial Markets without independent verification.

For the purposes of determining whether contingent interest accrues on the notes for any calendar day during an interest payment period, the notes use the LIBOR reference rate, which is the value of 3-Month USD-LIBOR-BBA in effect two London banking days prior to the 90th calendar date prior to such calendar day.  Accordingly, each calendar day represented in both graphs below also uses the value of 3-Month USD-LIBOR-BBA in effect two London banking days prior to the 90th calendar date prior to such calendar day.

The graph below shows the relationship between the average SIFMA and the LIBOR reference rate.

Historical Performance of Average SIFMA and LIBOR Reference Rate

January 1, 1995 to November 15, 2010

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The graph below shows the avgSIFMA/LIBOR quotient for each calendar day during the hypothetical interest payment periods over the historical period covered by the chart and therefore measures the average SIFMA divided by the LIBOR reference rate on each calendar day during such periods, as determined on each such day during such interest payment period.

Historical Performance of AvgSIFMA/LIBOR Quotient

January 1, 1995 to November 15, 2010  

* The bold lines in the graph represent the avgSIFMA/LIBOR quotients equal to 70%.

Historical period
Total number of calendar days in historical period	5,797
Number of calendar days that avgSIFMA/LIBOR quotient was less than 70%	3,929

The historical performance shown above is not indicative of future performance.  The avgSIFMA/LIBOR quotient may be equal to or greater than 70%, for one or more, and potentially on all, calendar days during an interest payment period.  As of November 15, 2010, the avgSIFMA/LIBOR quotient was approximately 75%.  See “Risk Factors—Yield Risk—The Amount Of Interest Payable On The Notes Is Uncertain, As Investors May Not Receive The Contingent Interest And Accordingly, May Only Receive An Interest Rate equal to LIBOR Reference Rate plus 1.25%” on page 8.

If on any calendar day in an interest payment period the avgSIFMA/LIBOR quotient is equal to or greater than 70%, no contingent interest will accrue for that day.  Moreover, during an interest payment period, interest will not exceed 8.00% per annum for any quarterly interest payment period.

Hypothetical Examples

The example below demonstrates how to calculate whether contingent interest will accrue on the notes for a particular calendar day during an interest payment period based on hypothetical values for average SIFMA and the LIBOR reference rate for such day.  We refer to any calendar day during an interest payment period on which the avgSIFMA/LIBOR quotient is less than 70% as a “contingent interest accrual day.”  The avgSIFMA/LIBOR quotient for any day during an interest payment period is average SIFMA divided by the LIBOR reference rate, in each case, as of such date.

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Example 1:

Hypothetical Average SIFMA	=	1.60%
Hypothetical LIBOR Reference Rate	=	2.00%
Hypothetical avgSIFMA/LIBOR Quotient	=	Hypothetical Average SIFMA / Hypothetical LIBOR Reference Rate
	=	1.60% / 2.00%
	=	80%

In the example above, the calendar day is not a contingent interest accrual day because the avgSIFMA/LIBOR quotient of 80% is not less than 70%.  Accordingly, interest will accrue at a rate equal to LIBOR reference rate for that interest payment period plus only 1.25% per annum on such day.

The table below presents further examples of how to calculate whether contingent interest will accrue on the notes for any particular calendar day during an interest payment period based on hypothetical values for average SIFMA and the LIBOR reference rate.

Hypothetical Average SIFMA	Hypothetical LIBOR Reference Rate	Hypothetical AvgSIFMA/LIBOR Quotient	Interest Accrual Day?	Reason
1.40%	2.80%	50%	YES	avgSIFMA/LIBOR quotient is less than 70%
1.96%	2.80%	70%	NO	avgSIFMA/LIBOR quotient is equal to or greater than 70%
2.10%	2.80%	75%	NO	avgSIFMA/LIBOR quotient is equal to or greater than70%

This table below presents examples of hypothetical interest rates at which interest would accrue on the notes during any quarterly interest payment period based on the total number of contingent interest accrual days in such quarterly interest payment period.  The table assumes that the LIBOR reference rate for the interest payment period is 2.50% and the interest payment period contains 90 calendar days.

N	Hypothetical Contingent Interest Rate
0	3.75000%
10	3.88889%
20	4.02778%
25	4.09722%
35	4.23611%
50	4.44444%
75	4.79167%
90	5.00000%

The examples above are for purposes of illustration only and would provide different results if different assumptions were made.  Whether any calendar day during an interest payment period is a contingent interest accrual day and the actual quarterly interest payments will depend on the actual number of calendar days in each interest payment period, the actual LIBOR reference rate for such interest payment period and the actual level of the avgSIFMA/LIBOR quotient on each calendar day during such interest payment period.  The applicable interest rate for each quarterly interest payment period will be determined on a per-annum basis but will apply only to that interest payment period.

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Risk Factors

The notes involve risks not associated with an investment in ordinary floating rate notes. An investment in the SIFMA Index and LIBOR Accrual Notes entails significant risks not associated with similar investments in a conventional debt security, including, but not limited to, fluctuations in the SIFMA index, fluctuations in LIBOR reference rate and other events that are difficult to predict and beyond the issuer’s control.  This section describes the most significant risks relating to the notes. For a complete list of risk factors, please see the accompanying prospectus supplement and the accompanying prospectus.  You should carefully consider whether the notes are suited to your particular circumstances before you decide to purchase them.  Accordingly, prospective investors should consult their financial and legal advisers as to the risks entailed by an investment in the notes and the suitability of the notes in light of their particular circumstances.

Yield Risk

§ The Amount Of Interest Payable On The Notes Is Uncertain, As Investors May Not Receive The Contingent Interest And Accordingly, May Only Receive An Interest Rate Equal To LIBOR Reference Rate Plus 1.25%. During every interest payment period, contingent interest will not accrue for any calendar day if on such day the avgSIFMA/LIBOR quotient is equal to or greater than 70%.  If the avgSIFMA/LIBOR quotient is equal to or greater than 70% for every calendar day during such interest payment period, the interest rate for such interest payment period will equal to LIBOR Reference Rate plus 1.25%, subject to a minimum interest rate of 3.00% per annum.  It is possible that you may only receive an interest rate equal to LIBOR reference rate plus 1.25% for most or all of the interest payment periods during the term of the notes and such interest rate for the notes may be as low as 3.00%.  As a result, the effective yield on the notes may be less than what would be payable on conventional notes of the issuer of comparable maturity.  The interest payments on the notes and return of the principal amount at maturity may not compensate you for the effects of inflation and other factors relating to the value of money over time.

§ The Amount Of Interest Payable On The Notes In Any Quarterly Interest Payment Period Will Not Exceed 8.00% Per Annum.  The interest rate on the notes for any quarterly interest payment period during the term of the notes will not exceed 8.00% per annum (equal to a maximum quarterly interest payment of $20 for each $1,000 stated principal amount of notes) even if every calendar day in such quarter has an avgSIFMA/LIBOR quotient is less than 70%.

§ There Are Various Factors Affecting The SFIMA Index And The LIBOR Reference Rate, Which In Turn Affect The AvgSIFMA/LIBOR Quotient. The interest rate for any particular interest payment period will depend on the avgSIFMA/LIBOR quotient.  If the avgSIFMA/LIBOR quotient is equal to or greater than 70% for any calendar day in an interest payment period, interest will accrue at a rate equal to the LIBOR reference rate for such interest payment period plus 1.25% per annum for that day, and the interest rate for such interest payment period will be less than 8.00% per annum and may be as low as 3.00% per annum. There are various factors that can affect the avgSIFMA/LIBOR quotient by affecting the relative levels of the SIFMA index and the LIBOR reference rate. These include:

· Marginal tax rates: As the SIFMA index represents the rate payable on tax-exempt variable rate demand obligations, decreases in the marginal tax rate may increase the SIFMA index (reflecting the reduced after-tax benefits of the tax-exempt variable rate demand obligations included in the SIFMA index), which could increase the avgSIFMA/LIBOR quotient above 70% (as average SIFMA exceeds 70% of the LIBOR reference rate).  No contingent interest will accrue on the notes for any calendar day during an interest payment period that the avgSIFMA/LIBOR quotient is equal to or greater than 70%.

· Tax-exempt status of municipal securities: Changes in the tax-exempt status of municipal securities may also impact the avgSIFMA/LIBOR quotient. If the tax-exempt status of municipal securities were to be removed, reduced or otherwise adversely impacted, the SIFMA index would likely increase, converging toward the non-tax-exempt LIBOR reference rate. This, in turn, could increase the avgSIFMA/LIBOR quotient above 70%.  No contingent interest will accrue on the notes for any calendar day during an interest payment period that the avgSIFMA/LIBOR quotient is equal to or greater than 70%.

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· Tax treatment of comparable securities: Changes in tax laws that grant non-municipal securities more favorable tax treatment may increase the avgSIFMA/LIBOR quotient by impacting market demand for and pricing of municipal securities.  However, this effect may be outweighed by any actual or anticipated changes in the actual or perceived creditworthiness of issuers of municipal securities.  See “—Creditworthiness of municipal securities” below.  No contingent interest will accrue on the notes for any calendar day during an interest payment period that the avgSIFMA/LIBOR quotient is equal to or greater than 70%.

· Creditworthiness of municipal securities relative to corporate issuers: Any actual or anticipated decline in the actual or perceived creditworthiness of issuers of municipal securities could significantly increase the level of the SIFMA index.  If the perceived creditworthiness of municipalities were to decline relative to the creditworthiness of corporate issuers, the avgSIFMA/LIBOR quotient may become equal to or greater than 70% and no contingent interest will accrue for any calendar day during the affected period.  Conversely, any actual or anticipated increase in the actual or perceived creditworthiness of issuers of municipal securities relative to the creditworthiness of corporate issuers could significantly decrease the level of the SIFMA index (for example, in times of financial crisis).

· Supply and demand for municipal securities; remarketing practices: In addition to the creditworthiness of municipal securities, other factors can affect the level of the SIFMA index, such as supply and demand imbalances, any changes in the remarketing practices for variable rate demand obligations or technical trading factors.  Any of these factors may increase the SIFMA index and thereby increase the avgSIFMA/LIBOR quotient above 70%.  No contingent interest will accrue on the notes for any calendar day during an interest payment period that the avgSIFMA/LIBOR quotient is equal to or greater than 70%.  Aside from changes in the tax law, such demand and supply movements could derive from fragmentation in the market for municipal securities, uncertainty with respect to the rights of holders of municipal securities and illiquidity generally in the market.

· The absolute level of interest rates (yield compression): As market interest rates in general decrease, municipal securities may become subject to decreasing demand (as the positive tax effects of holding tax-exempt municipal securities decline on a relative basis) and increasing supply (as municipal issuers seek to exploit low interest rates by issuing more securities). This demand and supply imbalance could increase the SIFMA index and accordingly, increase the avgSIFMA/LIBOR quotient above 70%. No contingent interest will accrue on the notes for any calendar day during an interest payment period that the avgSIFMA/LIBOR quotient is equal to or greater than 70%.

§ For the Purpose Of Determining The AvgSIFMA/LIBOR Quotient On a Calendar Day, the LIBOR Reference Rate Is The Rate In Effect Two London Banking Days Prior To The 90th Calendar Date Prior To The Date The AvgSIFMA/LIBOR Quotient Is Determined.  The calculation agent will use the LIBOR rate in effect two London banking days prior to the 90th calendar date prior to the current calendar day to determine the avgSIFMA/LIBOR quotient on such calendar day.  As a result, events occurring during the preceding 90 days will not be reflected in the LIBOR rate used to determine the avgSIFMA/LIBOR quotient.  However, to the extent those recent events affect the level of the SIFMA index, they will be reflected in average SIFMA, since it is a weighted average of the level of the SIFMA index over the preceding 90 calendar days. Accordingly, it is possible that events will occur during an interest payment period that increase the level of average SIFMA and increase the current LIBOR rate but, since they occurred within the preceding 90 days, will not increase the LIBOR reference rate used to determine the avgSIFMA/LIBOR quotient, with the result that the avgSIFMA/LIBOR quotient will be equal to or greater than 70%.  In these circumstances, no contingent interest would accrue for any calendar day during the affected period.

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SIFMA Municipal Swap Index and LIBOR Accrual Notes

§ Changes To Government Policy Are Likely To Apply Over Multiple Interest Payment Periods. Government policy changes which may impact the avgSIFMA/LIBOR quotient, such as marginal tax rate changes, the tax status of municipal securities and official interest rate positions, are likely to apply for time frames that extend over more than one interest payment period, meaning that any adverse policy changes would be likely to affect the interest rate that applies to the notes in more than one interest payment period and could result in no interest accruing on the notes for all or a significant portion of the term of the notes.

§ The Historical Performance Of Average SIFMA And The LIBOR Reference Rate Are Not An Indication Of Their Future Performance. The historical performance of average SIFMA and the LIBOR reference rate should not be taken as an indication of their future performance during the term of the notes.  Changes in average SIFMA and the LIBOR reference rate will affect the trading price of the notes, but it is impossible to predict whether such levels will rise or fall.    The avgSIFMA/LIBOR quotient has recently been volatile.  For example, as recently as July 5, 2010, the avgSIFMA/LIBOR quotient was approximately 99%, while as of November 15, it was approximately 75%.  There can be no assurance that the avgSIFMA/LIBOR quotient will be less than 70% for any calendar day during an interest payment period.  Furthermore, the historical performance of average SIFMA and the LIBOR reference rate do not reflect the return the notes would have, as any interest payable on the notes for any calendar day during an interest payment period will depend on the avgSIFMA/LIBOR quotient and will be subject to the LIBOR reference rate and average SIFMA cutoffs.

§ Investing In The Notes Is Not Equivalent To Investing In The SIFMA Index And Interest On The Notes Is Not Tax-Exempt. Investing in the notes is not equivalent to investing in tax-exempt municipal securities and you will have no rights or interest in any municipal securities. Any interest which is paid on the notes will not be tax-exempt.

Issuer Risk

§ Investors Are Subject To Our Credit Risk, And Any Actual Or Anticipated Changes To Our Credit Ratings And Credit Spreads May Adversely Affect The Market Value Of The Notes.  Investors are dependent on our ability to pay all amounts due on the notes on interest payment dates and at maturity and therefore investors are subject to our credit risk.  The notes are not guaranteed by any other entity.  If we default on our obligations under the notes, your investment would be at risk and you could lose some or all of your investment. As a result, the market value of the notes prior to maturity will be affected by changes in the market's view of our creditworthiness. Any actual or anticipated decline in our credit ratings or increase in the credit spreads charged by the market for taking our credit risk is likely to adversely affect the value of the notes.

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SIFMA Municipal Swap Index and LIBOR Accrual Notes

Market Risk

§ The Price At Which The Notes May Be Resold Prior To Maturity Will Depend On A Number Of Factors And May Be Substantially Less Than The Amount For Which They Were Originally Purchased. Some of these factors include, but are not limited to: (i) changes in average SIFMA and the LIBOR reference rate (ii) volatility of average SIFMA and the LIBOR reference rate, (iii) changes in other interest and yield rates available in the market, (iv) geopolitical conditions and economic, financial, political and regulatory or judicial events (including changes in marginal income tax rates or events affecting the tax-exempt status of municipal securities) that may affect average SIFMA or the LIBOR reference rate, (v) any actual or anticipated changes in our credit ratings or credit spreads, and (vi) time remaining to maturity.  Generally, the longer the time remaining to maturity and the more tailored the exposure, the more the market price of the notes will be affected by the other factors described in the preceding sentence.  These and other factors, including the fact that the interest rate applicable to the notes for any interest payment period will not be known until the last day of that interest payment period, can lead to significant adverse changes in the market price of securities like the notes. Primarily, if during an interest payment period the level of the avgSIFMA/LIBOR quotient is equal to or greater than 70%, no contingent interest will accrue on the notes and the market value of the notes is expected to decrease and you may receive substantially less than 100% of the issue price if you sell your notes at such time.

§ The Inclusion Of Commissions And Projected Profit From Hedging In The Original Issue Price Is Likely To Adversely Affect Secondary Market Prices.  Assuming no change in market conditions or any other relevant factors, the price, if any, at which MS & Co. is willing to purchase the notes at any time in secondary market transactions will likely be significantly lower than the original issue price, since secondary market prices are likely to exclude commissions paid with respect to the notes and the costs of hedging our obligations under the notes that are included in the original issue price.  The cost of hedging includes the projected profit that our subsidiaries may realize in consideration for assuming the risks inherent in managing the hedging transactions.  These secondary market prices are also likely to be reduced by the costs of unwinding the related hedging transactions.  Due to the term of the notes and the tailored exposure provided by the notes, the cost of entering into and unwinding the hedging transactions is expected to be significant.  In addition, any secondary market prices may differ from values determined by pricing models used by MS & Co., as a result of dealer discounts, mark-ups or other transaction costs.

Liquidity Risk

§ The Notes Will Not Be Listed On Any Securities Exchange And Secondary Trading May Be Limited.  The notes will not be listed on any securities exchange.  Therefore, there may be little or no secondary market for the notes.  MS & Co. may, but is not obligated to, make a market in the notes.  Even if there is a secondary market, it may not provide enough liquidity to allow you to trade or sell the notes easily.  Because we do not expect that other broker-dealers will participate significantly in the secondary market for the notes, the price at which you may be able to trade your notes is likely to depend on the price, if any, at which MS & Co. is willing to transact.  If at any time MS & Co. were not to make a market in the notes, it is likely that there would be no secondary market for the notes.  Accordingly, you should be willing to hold your notes to maturity.

Conflicts of Interest

§ The Issuer, Its Subsidiaries Or Affiliates May Publish Research That Could Affect The Market Value Of The Notes.  They Also Expect To Hedge The Issuer’s Obligations Under The Notes.  The issuer or one or more of its affiliates may, at present or in the future, publish research reports with respect to movements in interest rates generally or each of the components making up the avgSIFMA/LIBOR quotient  spread specifically. This research is modified from time to time without notice and may express opinions or provide recommendations that are inconsistent with purchasing or holding the notes.Any of these activities may affect the market value of the notes.  In addition, the issuer’s subsidiaries expect to hedge the issuer’s obligations under the notes and they may realize a profit from that expected hedging activity even if investors do not receive a favorable investment return under the terms of the notes or in any secondary market transaction.

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SIFMA Municipal Swap Index and LIBOR Accrual Notes

§ The Calculation Agent, Which Is A Subsidiary Of The Issuer, Will Make Determinations With Respect To The Notes. Any of these determinations made by the calculation agent may adversely affect the payout to investors.  Determinations made by the calculation agent, including with respect to average SIFMA, the LIBOR reference rate and the selection of a successor index, may adversely affect the payout to you on the notes.  See “Additional Provisions—SIFMA Index Fallback Mechanics.”  In determining a successor index, the calculation agent is permitted to consider indices calculated and published by MS & Co. or any of its affiliates.  If production of the SIFMA index has been discontinued and the calculation agent determines that there is no appropriate successor index, then the calculation agent will compute the value to be substituted for the SIFMA index in its sole and absolute discretion (acting in good faith) in accordance with the procedures last used to calculate the SIFMA index prior to any such discontinuance.  However, the SIFMA index generally consists of hundreds of municipal securities and the calculation agent may not be able to obtain the rates of each of these municipal securities on a weekly basis and, accordingly, the calculation agent will include the rates that it can obtain in a commercially reasonable manner in determining the value to be substituted for the SIFMA index.  Determining the substitute values of the SIFMA index in this manner could adversely affect the value of the notes and the amount of interest, if any, you receive on the notes.

Supplemental Information Concerning Plan of Distribution; Conflicts of Interest

We expect to deliver the notes against payment therefor in New York, New York on November 26, 2010, which will be the                scheduled business day following the date of the pricing of the notes.  Under Rule 15c6 1 of the Exchange Act, trades in the secondary market generally are required to settle in three business days, unless the parties to any such trade expressly agree otherwise.  Accordingly, purchasers who wish to trade notes on the date of pricing or on or prior to the third business day prior to the original issue date will be required to specify alternative settlement arrangements to prevent a failed settlement.

The agent may distribute the notes through Morgan Stanley Smith Barney LLC (“MSSB”), as selected dealer, or other dealers, which may include Morgan Stanley & Co. International plc (“MSIP”) and Bank Morgan Stanley AG.  MSSB, MSIP and Bank Morgan Stanley AG are affiliates of Morgan Stanley.  Selected dealers, including MSSB, and their financial advisors, will collectively receive from the Agent, MS & Co., a fixed sales commission of          % for each note they sell.

MS & Co. is our wholly-owned subsidiary.  MS & Co. will conduct this offering in compliance with the requirements of NASD Rule 2720 of the Financial Industry Regulatory Authority, Inc., which is commonly referred to as FINRA, regarding a FINRA member firm’s distribution of the securities of an affiliate and related conflicts of interest. MS & Co. or any of our other affiliates may not make sales in this offering to any discretionary account.

Tax Considerations

We intend to treat the notes as “variable rate debt instruments” for U.S. federal income tax purposes, as described in the section of the accompanying prospectus supplement called “United States Federal Taxation ― Tax Consequences to U.S. Holders ― Notes ― Floating Rate Notes.”  Both U.S. and non-U.S. holders should read the section of the accompanying prospectus supplement entitled “United States Federal Taxation.”

You should consult your tax advisers regarding all aspects of the U.S. federal tax consequences of an investment in the notes, as well as any tax consequences arising under the laws of any state, local or foreign taxing jurisdiction.

Contact Information

Morgan Stanley Smith Barney clients may contact their local Morgan Stanley Smith Barney branch office or our principal executive offices at 1585 Broadway, New York, New York 10036 (telephone number (866) 477-4776).  All other clients may contact their local brokerage representative.  Third-party distributors may contact Morgan Stanley Structured Investment Sales at (800) 233-1087.

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