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ProShares Ultrashort S&P500 (SDS) closed at $55.23 on October 23, 2026, up 1.2% from the previous close, on volume of 2,631,645 shares (30-day average 3,509,282).

Key numbers
  • Last close: $55.23 (October 23, 2026)
  • 52-week range: $51.97 to $80.50
  • Market value: $378.9 million
  • 30-day implied volatility (IV30): 29.1%
  • Option volume: 223 contracts (214 calls, 9 puts); 30-day average 332

Data as of October 23, 2026.

SDS Stock Summary and Trading Ideas (ProShares Ultrashort S&P500 | ARCA:SDS)

Charts for Today's Stock Price and Implied Volatility in ProShares Ultrashort S&P500

Stock Price & Volume | Full Chart

30-Day Implied Volatility | IV30 Full Chart

Trade Ideas for Best Option Strategies for SDS by Theoretical Edge and Win Rates

Sentiment

Trading Statistics

ProShares Ultrashort S&P500 (SDS) Frequently Asked Questions

What does ProShares Ultrashort S&P500 do?

ProShares UltraShort S&P500 seeks daily investment results before fees and expenses that correspond to twice (200%) the inverse (opposite) of the daily performance of the S&P500 Index.

What symbol and exchange does ProShares Ultrashort S&P500 shares trade?

ProShares Ultrashort S&P500 trades on the ARCA stock market under the symbol SDS.

What is ProShares Ultrashort S&P500 stock price doing today?

As of October 23, 2026, SDS stock price climbed to $55.23 with 2,631,645 million shares trading.

What is ProShares Ultrashort S&P500's Beta?

SDS has a beta of -1.99, meaning it tends to be less sensitive to market movements. SDS has a correlation of 1.00 to the broad based SPY ETF.

How much is ProShares Ultrashort S&P500 worth?

SDS has a market cap of $378.93 million. This is considered a Small Cap stock.

What is the highest and lowest price ProShares Ultrashort S&P500 traded in the last 3 year period?

In the last 3 years, SDS traded as high as $203.75 and as low as $51.97.

Is ProShares Ultrashort S&P500 (SDS) a good investment?

SDS has underperformed the market in the last year with a return of -19.5%, while the SPY ETF gained +14.9%. In the last 3 month period, SDS fell short of the market, returning -2.0%, while SPY returned +1.9%. However, in the most recent 2 weeks SDS has outperformed the stock market by returning +4.1%, while SPY returned -1.8%.

What are the support and resistance levels for ProShares Ultrashort S&P500 (SDS)?

SDS support price is $53.89 and resistance is $55.25 (based on 1 day standard deviation move). This means that using the most recent 20 day stock volatility and applying a one standard deviation move around the stock's closing price, stastically there is a 67% probability that SDS shares will trade within this expected range on the day.

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