ARK Space & Defense Innovation ETF

ARKXCBOE · USD
28.42USD+1.37 (+5.09%)

ARK Space & Defense Innovation ETF (ARKX) Historical Volatility

ARKX's 30 day historical volatility is 31.36%, in the 26th percentile of readings over the past year. This is a low percentile, meaning ARK Space & Defense Innovation ETF shares have been calmer than usual. ARKX's 30 day implied volatility sits at 41.99%, with an IV Rank of 69.84%, leaving IV 10.63 points above historical volatility. This means options are pricing in more movement than the stock has actually delivered, as of Nov 5, 2026.

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Tracking ARKX historical volatility helps you see how much ARK Space & Defense Innovation ETF's stock price has actually moved, giving you a baseline for whether option premiums look fair, cheap, or expensive. While implied volatility shows what the market expects, ARKX's HV, also known as realized volatility, shows what actually happened. Use our scanner to monitor ARKX 30 day historical volatility alongside longer lookback windows and spot the moments when realized and implied diverge.

Historical volatility is the annualized standard deviation of a stock's past returns, typically measured over rolling windows like 10, 20, 30, or 60 days. ARKX's 30 day historical volatility, or ARKX HV, is one of the most widely watched readings because it balances responsiveness with stability. Comparing ARKX's HV to its implied volatility reveals the volatility risk premium. When IV sits well above HV, options are pricing in more movement than the stock has actually delivered, giving option sellers an edge. When HV runs hot relative to IV, options are pricing in less movement than the stock has delivered, and buyers may be underpaying for it.

ARKX seeks long-term growth of capital by investing primarily in domestic and foreign equity securities of companies engaged in space exploration and defense innovation.

Historical Volatility

HV Percentile
26thHV Percentile
Low

Historical movement is subdued versus the past year. The stock has been unusually quiet.

Historical Volatility (30d)31.36%

HV Percentile26th

Implied Volatility (30d)41.99%

IV Rank69.84%

IV Minus HV+10.63%

As of Nov 5, 2026

IV vs HV
Implied Volatility (IV) vs Historical Volatility (HV) over the past month.

As of Nov 5, 2026

IV - HV Difference
Difference between IV and HV over time. Positive values indicate IV > HV.

As of Nov 5, 2026

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