0000320351 2024-06-14 2024-06-14 0000320351 fmr:SelectPortfoliosEnterpriseTechnologyServicesPortfolio-PROMember fmr:S000007491Member 2024-06-14 2024-06-14 0000320351 fmr:SelectPortfoliosEnterpriseTechnologyServicesPortfolio-PROMember fmr:S000007491Member rr:RiskLoseMoneyMember 2024-06-14 2024-06-14 0000320351 fmr:SelectPortfoliosEnterpriseTechnologyServicesPortfolio-PROMember fmr:S000007491Member rr:RiskNondiversifiedStatusMember 2024-06-14 2024-06-14 0000320351 fmr:SelectPortfoliosEnterpriseTechnologyServicesPortfolio-PROMember fmr:S000007491Member rr:RiskNotInsuredDepositoryInstitutionMember 2024-06-14 2024-06-14 0000320351 fmr:SelectPortfoliosEnterpriseTechnologyServicesPortfolio-PROMember fmr:S000007491Member fmr:EnterpriseTechnologyServicesIndustryConcentrationMember 2024-06-14 2024-06-14 0000320351 fmr:SelectPortfoliosEnterpriseTechnologyServicesPortfolio-PROMember fmr:S000007491Member fmr:ForeignExposureMember 2024-06-14 2024-06-14 0000320351 fmr:SelectPortfoliosEnterpriseTechnologyServicesPortfolio-PROMember fmr:S000007491Member fmr:IssuerSpecificChangesMember 2024-06-14 2024-06-14 0000320351 fmr:SelectPortfoliosEnterpriseTechnologyServicesPortfolio-PROMember fmr:S000007491Member fmr:StockMarketVolatilityMember 2024-06-14 2024-06-14 0000320351 fmr:SelectPortfoliosEnterpriseTechnologyServicesPortfolio-PROMember fmr:S000007491Member fmr:C000020465Member 2024-06-14 2024-06-14 0000320351 fmr:SelectPortfoliosEnterpriseTechnologyServicesPortfolio-PROMember fmr:S000007491Member fmr:ReturnBeforeTaxesMember fmr:C000020465Member 2024-06-14 2024-06-14 0000320351 fmr:SelectPortfoliosEnterpriseTechnologyServicesPortfolio-PROMember fmr:S000007491Member rr:AfterTaxesOnDistributionsMember fmr:C000020465Member 2024-06-14 2024-06-14 0000320351 fmr:SelectPortfoliosEnterpriseTechnologyServicesPortfolio-PROMember fmr:S000007491Member rr:AfterTaxesOnDistributionsAndSalesMember fmr:C000020465Member 2024-06-14 2024-06-14 0000320351 fmr:SelectPortfoliosEnterpriseTechnologyServicesPortfolio-PROMember fmr:S000007491Member fmr:IndexSP001Member 2024-06-14 2024-06-14 0000320351 fmr:SelectPortfoliosEnterpriseTechnologyServicesPortfolio-PROMember fmr:S000007491Member fmr:IndexF1517Member 2024-06-14 2024-06-14 iso4217:USD pure 485BPOS 2024-02-29 false 0000320351 N-1A Fidelity Select Portfolios Fund Summary Fund: Enterprise Technology Services Portfolio Investment Objective Enterprise Technology Services Portfolio seeks capital appreciation. Fee Table The following table describes the fees and expenses that may be incurred when you buy, hold, and sell shares of the fund. In addition to the fees and expenses described below, your broker may also require you to pay brokerage commissions on purchases and sales of the fund, which are not reflected in the table and example below. Shareholder fees 0 Annual Operating Expenses 0.0067 0 0.0001 0.0068 Adjusted to reflect current fees. This example helps compare the cost of investing in the fund with the cost of investing in other funds. Let's say, hypothetically, that the annual return for shares of the fund is 5% and that the fees and the annual operating expenses for shares of the fund are exactly as described in the fee table. This example illustrates the effect of fees and expenses, but is not meant to suggest actual or expected fees and expenses or returns, all of which may vary. For every $10,000 you invested, here's how much you would pay in total expenses if you sell all of your shares at the end of each time period indicated: 69 218 379 847 Portfolio Turnover The fund 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 operating expenses or in the example, affect the fund's performance. During the most recent fiscal year, the fund's portfolio turnover rate was 35 % of the average value of its portfolio. 0.35 Principal Investment Strategies Normally investing primarily in common stocks. Normally investing at least 80% of assets in securities of companies principally engaged in providing enterprise technology services. Investing in domestic and foreign issuers. Using fundamental analysis of factors such as each issuer's financial condition and industry position, as well as market and economic conditions, to select investments. Normally investing at least 80% of assets in securities of companies principally engaged in providing enterprise technology services. Principal Investment Risks Stock Market Volatility. Stock markets are volatile and can decline significantly in response to adverse issuer, political, regulatory, market, or economic developments. Different parts of the market, including different market sectors, and different types of securities can react differently to these developments. Foreign Exposure. Foreign markets can be more volatile than the U.S. market due to increased risks of adverse issuer, political, regulatory, market, or economic developments and can perform differently from the U.S. market. Enterprise Technology Services Industry Concentration. The enterprise technology services industry can be significantly affected by competitive pressures, such as technological developments, fixed-rate pricing, and the ability to attract and retain skilled employees, and the success of companies in the industry is subject to continued demand for enterprise technology services. Issuer-Specific Changes. The value of an individual security or particular type of security can be more volatile than, and can perform differently from, the market as a whole. The value of securities of smaller issuers can be more volatile than that of larger issuers. In addition, the fund is classified as non-diversified under the Investment Company Act of 1940 (1940 Act), which means that it has the ability to invest a greater portion of assets in securities of a smaller number of individual issuers than a diversified fund. As a result, changes in the market value of a single investment could cause greater fluctuations in share price than would occur in a more diversified fund. An investment in the fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency .   You could lose money by investing in the fund. Performance The following information is intended to help you understand the risks of investing in the fund. The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index and an additional index over various periods of time. The indexes have characteristics relevant to the fund's investment strategies. Index descriptions appear in the "Additional Index Information" section of the prospectus. Past performance (before and after taxes) is not an indication of future performance. Prior to June 1, 2023, the fund was named IT Services Portfolio and operated under certain different investment policies. The fund's historical performance may not represent its current investment policies. Visit www.fidelity.com for more recent performance information. The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index and an additional index over various periods of time. Past performance (before and after taxes) is not an indication of future performance. www.fidelity.com Year-by-Year Returns 0.0628 0.1313 0.0519 0.3425 0.0419 0.4223 0.3141 0.0254 -0.2883 0.2317    Highest Quarter Return 0.2549 2019-03-31    Lowest Quarter Return -0.1972 2022-06-30    Year-to-Date Return 0.0555 2024-03-31 Average Annual Returns After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement, such as an employee benefit plan (profit sharing, 401(k), or 403(b) plan). Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares. After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement, such as an employee benefit plan (profit sharing, 401(k), or 403(b) plan). Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares. Return Before Taxes 0.2317 0.1093 0.1151 Return After Taxes on Distributions 0.2209 0.0895 0.0997 Return After Taxes on Distributions and Sale of Fund Shares 0.1448 0.0868 0.0933 S&P 500® Index 0.2629 0.1569 0.1203 MSCI U.S. IMI Enterprise Technology Services 25/50 Linked Index 0.2288 0.1098 0.1095 A The management fee covers administrative services previously provided under separate services agreements with the fund, for which 0.20% was previously charged under the services agreements. B Adjusted to reflect current fees.