What If You Invested $1,000 in Fastly (FSLY)?
Enter any amount and start date. We use historical prices to show your hypothetical return.

FSLY
Historical extremes
What if you bought at the best or worst time? Check max profit, max drawdown, and total return since IPO.
Max profit
+1,058%
(11.6 times)
- Buy
- Mar 16, 2020
- $11.13
- Sell
- Oct 13, 2020
- $128.83
Buying FSLY at the best price and selling at the peak would have turned $1,000 into $11,575.02.
Max drawdown
96.12%
(fell to 4% of peak)
- Peak
- Oct 13, 2020
- $128.83
- Trough
- Apr 8, 2025
- $5
A $1,000 investment in FSLY at the peak would have shrunk to $38.81 at the trough.
Return since IPO
+5.92%
(1.06 times)
- IPO
- May 17, 2019
- $23.99
- Current
- Apr 20, 2026
- $25.41
A $1,000 investment in FSLY at IPO would be worth $1,059.19 today.
Frequently asked questions
What is Fastly (FSLY) stock's all-time high (ATH) and all-time low (ATL)?
- Fastly (FSLY) stock's all-time low (ATL) was $5 on Apr 8, 2025. The all-time high (ATH) was $128.83 on Oct 13, 2020.
What if you invested $1,000 in Fastly (FSLY) stock for maximum profit?
- Buying Fastly (FSLY) stock at the best price ($11.13 on Mar 16, 2020) and selling at the peak ($128.83 on Oct 13, 2020) would have turned $1,000 into $11,575.02. Historical return: +1,057.50% (11.6 times).
What are Fastly (FSLY)'s best buy and sell dates for maximum profit?
- The best buy date for Fastly (FSLY) stock was Mar 16, 2020 at $11.13. The best sell date was Oct 13, 2020 at $128.83. This investment would have returned +1,057.50% (11.6 times).
What was Fastly (FSLY) stock's maximum drawdown?
- Fastly (FSLY) stock's worst decline was 96.12% (fell to 4% of peak) from peak to trough. Peak: $128.83 on Oct 13, 2020. Trough: $5 on Apr 8, 2025. A $1,000 investment at the peak would have been worth $38.81 at the trough.
What if you bought Fastly (FSLY) stock at IPO?
- A $1,000 investment in Fastly (FSLY) stock at IPO ($23.99 on May 17, 2019) would be worth $1,059.19 today. Historical return: +5.92% (1.06 times). Current stock price: $25.41 as of Apr 20, 2026.
What if you invested $1,000 in Fastly (FSLY) 5 years ago?
- A $1,000 investment in Fastly (FSLY) stock 5 years ago ($66.46 on Apr 20, 2021) would be worth $382.34 today. Historical return: 61.77% (0.38 times). Current stock price: $25.41 as of Apr 20, 2026.
Data & methodology
How does the investment calculator work?
- Enter an investment amount and a start date. We use historical stock prices to calculate how many shares you would have bought, then apply the current price to show your hypothetical portfolio value and return.
What are Historical extremes?
- Max profit: the best buy and sell dates that maximize percentage return. Max drawdown: the largest peak-to-trough decline in price. Return since IPO: total return from IPO date to the latest price.
What is Max drawdown?
- Maximum drawdown is the largest peak-to-trough decline in price. It shows the worst drop from any prior high to a subsequent low. Peak and Trough are the dates and prices at which this decline occurred.
Does this include dividends?
- The calculator uses adjusted closing prices when available, which account for stock splits and dividends. For the most accurate results, we recommend using data that includes dividend adjustments.
Where does the price data come from?
- Historical prices are dividend-adjusted closing prices from our data provider. The calculator and Historical extremes use the same data source for consistent results.
How are the dollar amounts in the cards calculated?
- The dollar amounts in Historical extremes use the investment amount you select in the calculator above (e.g. $1,000). They show what your investment would have been worth at the Buy/Peak/IPO date versus the Sell/Trough/Current date.
What date range can I use?
- The available date range depends on our historical price data for FSLY. You can select any date between our first and most recent data point.
Explore more
FSLY — Overview
Company profile, financial tools, and key metrics
FSLY — Revenue Counter
See revenue per second, minute, hour, and day
FSLY — Earnings Counter
See earnings per second, minute, hour, and day
Seasonality for FSLY
Best and worst months for returns
FSLY — Daily Price Character
Win rate, streaks, record days, and day-of-week patterns
FSLY — Price Target
Bear, base, and bull scenarios with EPS growth and P/E sliders
Full revenue rankings
Companies ranked by revenue