Tearsheet

Fastly (FSLY)


Market Price (12/18/2025): $10.0 | Market Cap: $1.5 Bil
Sector: Information Technology | Industry: Application Software

Fastly (FSLY)


Market Price (12/18/2025): $10.0
Market Cap: $1.5 Bil
Sector: Information Technology
Industry: Application Software

Investment Highlights Why It Matters Which of these 2 stories sounds closer for this stock?

1. Generates cash flow

The stock generated 4% or more of the share price (called cash flow yield), and shows moderate 10-15% or more growth.

2. Riding a trend

Think Tesla during the pandemic of 2020 when EVs were riding a cultural high, or Nvidia in the current AI boom, or even Figma. These companies don’t have enough yield, or, enough growth, or both - however - they are riding a trend. They have momentum. These can be more volatile - they don’t have the floor of strong cash flow


0 Attractive cash flow generation
CFO/Rev LTMCash Flow from Operations / Revenue (Sales), Last Twelve Months (LTM) is 13%
Weak multi-year price returns
2Y Excs Rtn is -87%, 3Y Excs Rtn is -64%
Not profitable at operating income level
Op Inc LTMOperating Income, Last Twelve Months is -137 Mil, Op Mgn LTMOperating Margin = Operating Income / Revenue Reflects profitability before taxes and before impact of capital structure (interest payments). is -23%
1 Megatrend and thematic drivers
Megatrends include Digital Content & Streaming, Cybersecurity, and Artificial Intelligence. Themes include Video Streaming, Show more.
  Yield minus risk free rate is negative
ERPEquity Risk Premium (ERP) = Total Yield - Risk Free Rate, Reflects the premium above risk free assets offered by the investment. is -15%
2   Key risks
FSLY key risks include [1] its history of significant operating losses and an uncertain path to profitability, Show more.
0 Attractive cash flow generation
CFO/Rev LTMCash Flow from Operations / Revenue (Sales), Last Twelve Months (LTM) is 13%
1 Megatrend and thematic drivers
Megatrends include Digital Content & Streaming, Cybersecurity, and Artificial Intelligence. Themes include Video Streaming, Show more.
2 Weak multi-year price returns
2Y Excs Rtn is -87%, 3Y Excs Rtn is -64%
3 Not profitable at operating income level
Op Inc LTMOperating Income, Last Twelve Months is -137 Mil, Op Mgn LTMOperating Margin = Operating Income / Revenue Reflects profitability before taxes and before impact of capital structure (interest payments). is -23%
4 Yield minus risk free rate is negative
ERPEquity Risk Premium (ERP) = Total Yield - Risk Free Rate, Reflects the premium above risk free assets offered by the investment. is -15%
5 Key risks
FSLY key risks include [1] its history of significant operating losses and an uncertain path to profitability, Show more.

Valuation, Metrics & Events

FSLY Stock


Why The Stock Moved


Qualitative Assessment

AI Generated Analysis | Feedback

Here are the key points explaining Fastly's (FSLY) stock movement for the approximate time period from August 31, 2025, to today:

1. Strong Third Quarter 2025 Financial Results: Fastly announced record third-quarter 2025 financial results on November 5, 2025, surpassing both revenue and operating performance expectations. The company reported $158.2 million in revenue, marking a 15% year-over-year increase and exceeding its guidance range. Additionally, Fastly achieved a positive non-GAAP operating income of $11.6 million and generated a record $18.1 million in free cash flow. These results led to a significant surge in the stock price, with shares climbing as much as 19% in premarket trading.

2. Robust Growth in the Security Segment: A major contributor to Fastly's strong financial performance in Q3 2025 was the impressive 30% year-over-year growth in its security revenue. This highlights the effectiveness of the company's platform expansion and cross-sell strategies within its security offerings, which was a key driver of investor confidence.

Show more

Stock Movement Drivers

Return vs. Risk


Price Returns Compared

 202020212022202320242025Total [1]
Returns
FSLY Return335%-59%-77%117%-47%8%-49%
Peers Return151%50%-48%61%14%34%381%
S&P 500 Return16%27%-19%24%23%14%108%

Monthly Win Rates [3]
FSLY Win Rate67%25%8%67%42%42% 
Peers Win Rate68%67%32%65%58%60% 
S&P 500 Win Rate58%75%42%67%75%73% 

Max Drawdowns [4]
FSLY Max Drawdown-45%-60%-79%-1%-68%-47% 
Peers Max Drawdown-17%-10%-52%-13%-18%-15% 
S&P 500 Max Drawdown-31%-1%-25%-1%-2%-15% 


[1] Cumulative total returns since the beginning of 2020
[2] Peers: NET, AKAM, ZS, FFIV, GOOGL. See FSLY Returns vs. Peers.
[3] Win Rate = % of calendar months in which monthly returns were positive
[4] Max drawdown represents maximum peak-to-trough decline within a year
[5] 2025 data is for the year up to 12/17/2025 (YTD)

How Low Can It Go

Unique KeyEventFSLYS&P 500
2022 Inflation Shock2022 Inflation Shock  
2022 Inflation Shock% Loss% Loss-93.7%-25.4%
2022 Inflation Shock% Gain to Breakeven% Gain to Breakeven1484.1%34.1%
2022 Inflation ShockTime to BreakevenTime to BreakevenNot Fully Recovered days464 days
2020 Covid Pandemic2020 Covid Pandemic  
2020 Covid Pandemic% Loss% Loss-55.8%-33.9%
2020 Covid Pandemic% Gain to Breakeven% Gain to Breakeven126.2%51.3%
2020 Covid PandemicTime to BreakevenTime to Breakeven52 days148 days

Compare to NET, VRSN, AKAM, BMR, BTTC


In The Past

Fastly's stock fell -93.7% during the 2022 Inflation Shock from a high on 2/9/2021. A -93.7% loss requires a 1484.1% gain to breakeven.

Preserve Wealth

Limiting losses and compounding gains is essential to preserving wealth over time.

Asset Allocation

Actively managed asset allocation strategies protect wealth. Learn more.

About Fastly (FSLY)

Better Bets than Fastly (FSLY)

Latest Trefis Analyses

Trade Ideas

Select past ideas related to FSLY. For more, see Trefis Trade Ideas.

Unique KeyDateTickerCompanyCategoryTrade Strategy6M Fwd Rtn12M Fwd Rtn12M Max DD
ENPH_11302025_Dip_Buyer_High_CFO_Margins_ExInd_DE11302025ENPHEnphase EnergyDip BuyDB | CFO/Rev | Low D/EDip Buy with High Cash Flow Margins
Buying dips for companies with significant cash flows from operations and reasonable debt / market cap
10.4%10.4%-0.9%
PD_11262025_Dip_Buyer_High_FCF_Yield_ExInd_DE_RevG11262025PDPagerDutyDip BuyDB | FCF Yield | Low D/EDip Buy with High Free Cash Flow Yield
Buying dips for companies with significant free cash flow yield (FCF / Market Cap) and reasonable debt / market cap
10.7%10.7%0.0%
CRM_11212025_Dip_Buyer_FCFYield11212025CRMSalesforceDip BuyDB | FCFY OPMDip Buy with High FCF Yield and High Margin
Buying dips for companies with high FCF yield and meaningfully high operating margin
12.2%12.2%-0.1%
HUBS_11212025_Dip_Buyer_High_CFO_Margins_ExInd_DE11212025HUBSHubSpotDip BuyDB | CFO/Rev | Low D/EDip Buy with High Cash Flow Margins
Buying dips for companies with significant cash flows from operations and reasonable debt / market cap
4.2%4.2%0.0%
FIVN_11212025_Dip_Buyer_High_FCF_Yield_ExInd_DE_RevG11212025FIVNFive9Dip BuyDB | FCF Yield | Low D/EDip Buy with High Free Cash Flow Yield
Buying dips for companies with significant free cash flow yield (FCF / Market Cap) and reasonable debt / market cap
13.6%13.6%0.0%
Unique KeyDateTickerCompanyCategoryTrade Strategy6M Fwd Rtn12M Fwd Rtn12M Max DD
ENPH_11302025_Dip_Buyer_High_CFO_Margins_ExInd_DE11302025ENPHEnphase EnergyDip BuyDB | CFO/Rev | Low D/EDip Buy with High Cash Flow Margins
Buying dips for companies with significant cash flows from operations and reasonable debt / market cap
10.4%10.4%-0.9%
PD_11262025_Dip_Buyer_High_FCF_Yield_ExInd_DE_RevG11262025PDPagerDutyDip BuyDB | FCF Yield | Low D/EDip Buy with High Free Cash Flow Yield
Buying dips for companies with significant free cash flow yield (FCF / Market Cap) and reasonable debt / market cap
10.7%10.7%0.0%
CRM_11212025_Dip_Buyer_FCFYield11212025CRMSalesforceDip BuyDB | FCFY OPMDip Buy with High FCF Yield and High Margin
Buying dips for companies with high FCF yield and meaningfully high operating margin
12.2%12.2%-0.1%
HUBS_11212025_Dip_Buyer_High_CFO_Margins_ExInd_DE11212025HUBSHubSpotDip BuyDB | CFO/Rev | Low D/EDip Buy with High Cash Flow Margins
Buying dips for companies with significant cash flows from operations and reasonable debt / market cap
4.2%4.2%0.0%
FIVN_11212025_Dip_Buyer_High_FCF_Yield_ExInd_DE_RevG11212025FIVNFive9Dip BuyDB | FCF Yield | Low D/EDip Buy with High Free Cash Flow Yield
Buying dips for companies with significant free cash flow yield (FCF / Market Cap) and reasonable debt / market cap
13.6%13.6%0.0%

Recent Active Movers

Recent Active Movers

More From Trefis

Peer Comparisons for Fastly

Peers to compare with:

Financials

FSLYNETAKAMZSFFIVGOOGLMedian
NameFastly Cloudfla.Akamai T.Zscaler F5 Alphabet  
Mkt Price10.01191.4387.55226.43256.07296.72208.93
Mkt Cap1.566.912.647.514.83,586.231.1
Rev LTM5922,0134,1332,8333,088385,4772,961
Op Inc LTM-137-193637-133791124,077252
FCF LTM3420971884890673,552783
FCF 3Y Avg-1616074065475668,998697
CFO LTM775401,4961,089950151,4241,020
CFO 3Y Avg263751,454845798120,990822

Growth & Margins

FSLYNETAKAMZSFFIVGOOGLMedian
NameFastly Cloudfla.Akamai T.Zscaler F5 Alphabet  
Rev Chg LTM9.4%28.1%4.2%23.2%9.7%13.4%11.5%
Rev Chg 3Y Avg13.0%31.1%4.8%32.9%4.7%11.0%12.0%
Rev Chg Q15.3%30.7%5.0%25.5%8.5%15.9%15.6%
QoQ Delta Rev Chg LTM3.7%7.0%1.2%6.0%2.1%3.8%3.7%
Op Mgn LTM-23.2%-9.6%15.4%-4.7%25.6%32.2%5.4%
Op Mgn 3Y Avg-31.4%-12.0%16.8%-7.1%22.8%29.9%4.9%
QoQ Delta Op Mgn LTM1.1%0.3%0.0%0.1%0.4%-0.5%0.2%
CFO/Rev LTM13.0%26.8%36.2%38.5%30.8%39.3%33.5%
CFO/Rev 3Y Avg4.3%22.9%36.8%36.4%27.4%35.3%31.4%
FCF/Rev LTM5.8%10.4%17.4%29.9%29.4%19.1%18.2%
FCF/Rev 3Y Avg-3.6%9.9%18.7%28.2%25.9%20.5%19.6%

Valuation

FSLYNETAKAMZSFFIVGOOGLMedian
NameFastly Cloudfla.Akamai T.Zscaler F5 Alphabet  
Mkt Cap1.566.912.647.514.83,586.231.1
P/S2.137.22.616.84.87.66.2
P/EBIT-10.1-874.515.8-18.719.315.8
P/E-9.1-727.521.5-1,158.021.323.66.1
P/CFO16.4138.87.343.615.519.417.9
Total Yield-11.0%-0.1%4.7%-0.1%4.7%4.6%2.2%
Dividend Yield0.0%0.0%0.0%0.0%0.0%0.3%0.0%
FCF Yield 3Y Avg-0.8%0.5%5.4%-5.7%3.3%3.3%
D/E0.30.00.5-0.00.00.0
Net D/E0.1-0.00.4--0.1-0.0-0.0

Returns

FSLYNETAKAMZSFFIVGOOGLMedian
NameFastly Cloudfla.Akamai T.Zscaler F5 Alphabet  
1M Rtn-3.9%-5.3%-0.1%-23.2%12.0%4.2%-2.0%
3M Rtn16.0%-10.5%15.4%-19.0%-20.9%19.0%2.5%
6M Rtn47.2%5.5%11.2%-25.9%-10.6%71.5%8.4%
12M Rtn-11.7%62.8%-10.1%13.0%-1.4%52.4%5.8%
3Y Rtn11.2%302.7%3.0%98.3%77.6%231.2%87.9%
1M Excs Rtn-4.7%-6.1%-0.8%-24.0%11.3%3.4%-2.7%
3M Excs Rtn10.5%-15.7%12.2%-23.6%-24.2%16.5%-2.6%
6M Excs Rtn34.8%-6.9%-1.1%-38.2%-23.0%59.1%-4.0%
12M Excs Rtn-15.6%57.4%-22.9%3.0%-13.3%45.9%-5.2%
3Y Excs Rtn-63.9%207.5%-71.8%18.3%-2.0%152.0%8.2%

Financials

Segment Financials

Revenue by Segment

$ Mil20242023202220212020
Network Services405    
Security93    
Other8    
Single Segment 433354291200
Total506433354291200


Price Behavior

Short Interest

Short Interest: As Of Date11282025
Short Interest: Shares Quantity9,445,148
Short Interest: % Change Since 11152025-5.4%
Average Daily Volume4,039,379
Days-to-Cover Short Interest2.34
Basic Shares Quantity148,129,000
Short % of Basic Shares6.4%

Earnings Returns History

Expand for More

 Forward Returns
Earnings Date1D Returns5D Returns21D Returns
11/5/202535.9%47.5%37.8%
8/6/202514.4%11.0%14.0%
5/7/202526.4%37.1%27.0%
2/12/2025-20.9%-22.4%-32.0%
11/6/20240.1%-10.7%33.6%
8/7/2024-14.3%-12.4%-17.4%
5/1/2024-32.0%-35.7%-39.4%
2/14/2024-30.6%-37.8%-46.5%
...
SUMMARY STATS   
# Positive10811
# Negative141613
Median Positive15.7%21.6%27.0%
Median Negative-17.9%-21.3%-32.0%
Max Positive45.7%58.6%95.6%
Max Negative-33.6%-40.5%-46.5%

SEC Filings

Expand for More

Report DateFiling DateFiling
93020251107202510-Q 9/30/2025
6302025806202510-Q 6/30/2025
3312025507202510-Q 3/31/2025
12312024226202510-K 12/31/2024
93020241107202410-Q 9/30/2024
6302024808202410-Q 6/30/2024
3312024501202410-Q 3/31/2024
12312023222202410-K 12/31/2023
93020231103202310-Q 9/30/2023
6302023802202310-Q 6/30/2023
3312023503202310-Q 3/31/2023
12312022227202310-K 12/31/2022
93020221104202210-Q 9/30/2022
6302022805202210-Q 6/30/2022
3312022505202210-Q 3/31/2022
12312021301202210-K 12/31/2021