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BST

Science and Technology Trust

NAV as of Jul 13, 2018 $32.04
52 WK: 24.72 - 32.73
1 Day NAV Change as of Jul 13, 2018 -0.15 (-0.47%)

Market Price as of Jul 13, 2018 $34.89
1 Day Price Change as of Jul 13, 2018 0.40 (1.16%)
Distribution Rate as of Jul 13, 2018 5.16%
Premium Discount as of Jul 13, 2018 8.90%

Overview

Investment Approach

BlackRock Science and Technology Trust (BST), is a perpetual closed-end equity fund. BST commenced operations in October 2014 with the investment objectives of providing income and total return through a combination of current income, current gains and long-term capital appreciation. Under normal market conditions, the Trust will invest at least 80% of its total assets in equity securities issued by U.S. and non-U.S. science and technology companies in any market capitalization range, selected for their rapid and sustainable growth potential from the development, advancement and use of science and/or technology (high growth science and technology stocks), and/or potential to generate current income from advantageous dividend yields (cyclical science and technology stocks). As part of its investment strategy, the Trust intends to employ a strategy of writing (selling) covered call options on a portion of the common stocks in its portfolio.

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Performance

Returns

Average Annual
Cumulative
Calendar Year

	1y	3y	5y	10y	Incept. Performance data for certain classes of shares of certain funds are based on pre-class inception information dating back to an older class of fund shares. This information may be considered when assessing a fund's performance, but it does not represent actual performance of these classes of shares. The inception date noted under Key Fund Facts is the date the class of shares was incepted. See fund prospectus or fact sheet for details.
Total Return (%) Total return represents changes to the NAV and accounts for distributions from the fund.	37.66	21.92	-	-	20.88
Market Price (%) Market price return represents changes to the midpoint price and accounts for distributions from the fund. The midpoint is the average of the bid-ask prices at 4:00 PM ET (when NAV is normally determined for most funds).	49.92	26.79	-	-	19.88

Missing average annual returns data

	YTD	1m	1y	3y	5y	10y	Incept. Performance data for certain classes of shares of certain funds are based on pre-class inception information dating back to an older class of fund shares. This information may be considered when assessing a fund's performance, but it does not represent actual performance of these classes of shares. The inception date noted under Key Fund Facts is the date the class of shares was incepted. See fund prospectus or fact sheet for details.
Total Return (%) Total return represents changes to the NAV and accounts for distributions from the fund.	7.99	-1.27	37.66	81.24	-	-	91.13
Market Price (%) Market price return represents changes to the midpoint price and accounts for distributions from the fund. The midpoint is the average of the bid-ask prices at 4:00 PM ET (when NAV is normally determined for most funds).	14.21	-1.72	49.92	103.83	-	-	85.81

Missing cumulative returns data

	2013	2014	2015	2016	2017
Total Return (%) Total return represents changes to the NAV and accounts for distributions from the fund.	-	-	8.61	9.30	45.73
Market Price (%) Market price return represents changes to the midpoint price and accounts for distributions from the fund. The midpoint is the average of the bid-ask prices at 4:00 PM ET (when NAV is normally determined for most funds).	-	-	5.36	11.08	57.15

Missing calendar year returns data

Returns are shown net of advisory fees paid by the fund and net of the fund’s operating fees and expenses. Investors who purchase shares of the fund through an investment adviser or other financial professional may separately pay a fee to that service provider. Past performance is not indicative of future results.

The performance quoted represents past performance and does not guarantee future results. Investment return and principal value of an investment will fluctuate so that an investor’s shares may be worth more or less than the original cost. Current performance may be lower or higher than the performance quoted, and numbers may reflect small variances due to rounding. Standardized performance and performance data current to the most recent month end may be found in the Performance section.

Growth of Hypothetical $10,000 The growth of hypothetical $10,000 chart reflects a hypothetical $10,000 investment and assumes reinvestment of dividends and capital gains. Fund expenses, including management fees and other expenses were deducted.

Performance chart data not available for display.

Growth of Hypothetical $10,000
Historical NAVs
Historical Premium/Discount

NAV Market Price

Science and Technology Trust ($)

Source: Lipper. Data reflects different methodology from the BlackRock calculated returns in the Returns tab. The Growth of Hypothetical $10,000 chart reflects a hypothetical $10,000 investment in the fund. The chart uses NAV performance or market price performance and assumes reinvestment of dividends and capital gains. The chart assumes Fund expenses, including management fees and other expenses were deducted. The starting NAV for the NAV performance chart reflects a deduction of the sales charge from the initial public offering price.

Source: Lipper. Data reflects different methodology from the BlackRock calculated returns in the Returns tab. The $10,000 Hypothetical Over Time chart reflects a hypothetical $10,000 investment in the investor class of shares noted and does not assume the max sales charge. Had sales charge been included, returns would have been lower. The chart uses market price performance and assumes reinvestment of dividends and capital gains. Fund expenses, including 12b-1 fees, management fees and other expenses were deducted. Performance for other share classes will vary.

Historical NAVs

Historical Prices

Premium/Discount Percent

Distributions

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Recent
Calendar Year

Chart
Table

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Ex-Date	Payable Date	Record Date	Total Distribution Current year distributions are not classified as “Income,” “Short-Term Capital Gains,” “Long-Term Capital Gains,” or “Return of Capital” until approximately 60 days following calendar year-end.	Income	ST Cap Gains	LT Cap Gains	Return of Capital

Chart
Table

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Custom Columns

Year
Total Distribution

Year	Total Distribution Current year distributions are not classified as “Income,” “Short-Term Capital Gains,” “Long-Term Capital Gains,” or “Return of Capital” until calendar year-end.

Past distributions are not indicative of future distributions.

If a Fund estimates that it has distributed more than its income and net realized capital gains in the current fiscal year; a portion of its distribution may be a return of capital. A return of capital may occur, for example, when some or all of a shareholder's investment is paid back to the shareholder. A return of capital distribution does not necessarily reflect a Fund's investment performance and should not be confused with 'yield' or 'income'. When distributions exceed total return performance, the difference will reduce the Fund's net asset value per share. Although the character of income will not be determined until the end of the fund’s fiscal year, please refer to the 'Closed-End Fund Resources' section of the BlackRock website for Section 19 notices that provide estimated amounts and sources of the fund's distributions, which should not be not be relied upon for tax reporting purposes. A Form 1099-DIV for the calendar year will be sent to shareholders to illustrate how the Fund’s distributions should be reported for federal income tax purposes.

Key Facts

Net Assets as of Jul 13, 2018 $717,586,759

Managed Assets as of Jul 13, 2018 $717,586,758.72

Share Class launch date Oct 28, 2014

Exchange New York Stock Exchange Inc.

Asset Class Equity

Morningstar Category Technology

Lipper Classification Sector Equity Funds

CUSIP 09258G104

Management Fee 0.80%

Gross Expense Ratio 0.89%

Shares Outstanding as of Jul 13, 2018 22,395,449

Number of Holdings as of Jun 29, 2018 92

Premium Discount The amount the Fund is trading above or below the reported NAV expressed as a percentage of NAV. When the Fund’s closing price is greater than the Fund’s NAV, it is said to be trading at a "Premium" and the percentage is expressed as a positive number. When the Fund’s closing price is less than the Fund’s NAV, it is said to be trading at a "Discount" and the percentage is expressed as a negative number. Closing price is determined using the last traded price on the Fund’s listed exchange and NAV is calculated daily (usually 4:00pm eastern time). as of Jul 13, 2018 8.90%

Portfolio Characteristics

Average Market Cap (Millions) The average size of the securities the fund invests in. as of Jun 29, 2018 $ 255,785.9 M

Distribution Rate The annual yield an investor would receive if the most recent fund distribution and current fund price stayed the same going forward. It is calculated by annualizing the most recent distribution and dividing by the fund's market price from the as-of-date. The distribution rate may include a return of capital. Please refer to the "Closed-End Fund Resources" section of the BlackRock website for Section 19 notices that provide estimated amounts and sources of the fund's distributions, which should not be relied upon for tax reporting purposes. as of Jul 13, 2018 5.16%

Type of Options Type of options written to enhance portfolio returns. Single Stock

% Overwritten Relative amount of the portfolio for which the holdings have been covered by written call options, used to enhance portfolio returns. as of Jun 29, 2018 31.66

Ratings

Holdings

as of Jun 29, 2018

Name	Weight (%)
AMAZON.COM INC	5.58
MICROSOFT CORPORATION	5.22
TENCENT HOLDINGS LTD	4.70
ALPHABET INC	4.55
APPLE INC	3.75

Name	Weight (%)
ALIBABA GROUP HOLDING LTD	3.28
MASTERCARD INC	2.62
SQUARE INC	2.46
VISA INC	2.42
SALESFORCE.COM INC.	2.34

as of Jun 29, 2018

% of Market Value

Type	Fund

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as of Jun 29, 2018

% of Market Value

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as of Jun 29, 2018

% of Market Value

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as of Jun 29, 2018

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Negative weightings may result from specific circumstances (including timing differences between trade and settle dates of securities purchased by the funds) and/or the use of certain financial instruments, including derivatives, which may be used to gain or reduce market exposure and/or risk management.

Allocations are subject to change.

Portfolio Managers

Tony Kim

Kyle McClements

Christopher Accettella

Portfolio Manager

Literature

Important Information

Carefully consider the Funds' investment objectives, risk factors, and charges and expenses before investing. This and other information can be found in the Funds' prospectuses or, if available, the summary prospectuses which may be obtained by visiting the iShares Fund and BlackRock Fund prospectus pages. Read the prospectus carefully before investing.

Common shares for most of the closed-end funds identified above are only available for purchase and sale at current market price on a stock exchange. A closed-end fund’s dividend yield, market price and NAV will fluctuate with market conditions. The information for these funds is provided for informational purposes only and does not constitute a solicitation of an offer to buy or sell Fund shares.

Performance results reflect past performance and are no guarantee of future results. Investment return and principal value of shares will fluctuate so that shares, when redeemed, may be worth more or less than their original cost. All returns assume reinvestment of all dividends. Performance information shown without sales charge would have been lower if the applicable sales charge had been included. Performance during periods of exceptional market conditions should not be expected to be repeated in a normal market environment. Current performance may be lower or higher than the performance data quoted.

Investing involves risk, including possible loss of principal.

Fund details, holdings and characteristics are as of the date noted and subject to change.

Yields are based on income earned for the period cited and on the Fund's NAV at the end of the period.

Some BlackRock funds make distributions of ordinary income and capital gains at calendar year end. Those distributions temporarily cause extraordinarily high yields. There is no assurance that a fund will repeat that yield in the future. Subsequent monthly distributions that do not include ordinary income or capital gains in the form of dividends will likely be lower.

The Funds are distributed by BlackRock Investments, LLC (together with its affiliates, “BlackRock”).

©2018 BlackRock, Inc. All rights reserved. BLACKROCK and BUILD ON BLACKROCK are registered and unregistered trademarks of BlackRock, Inc or its subsidiaries in the United States and elsewhere. All other trademarks are those of their respective owners.

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