ProShares S&P Kensho Cleantech ETF (CTEX) Historical Volatility

Tracking CTEX historical volatility helps you see how much ProShares S&P Kensho Cleantech ETF's stock price has actually moved over past periods, giving you a baseline to judge whether current option premiums are fair, cheap, or expensive. While implied volatility tells you what the market expects, ProShares S&P Kensho Cleantech ETF's HV tells you what really happened. Use our scanner to monitor CTEX 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 an underlying's past returns, typically measured over rolling windows like 10, 20, 30, or 60 days. The CTEX 30 day historical volatility is one of the most widely watched readings because it balances responsiveness with stability. Comparing ProShares S&P Kensho Cleantech ETF's HV to its implied volatility reveals the volatility risk premium — when IV sits well above HV, option sellers tend to have an edge; when HV runs hot relative to IV, buyers may be underpaying for movement.

The fund invests in securities that ProShare Advisors believes, in combination, should track the performance of the index. The index selects companies focused on building the technologies or products that enable the generation of clean energy, such as solar, wind, geothermal, hydrogen, and hydroelectric. The fund will invest in all of the component securities of the index in approximately the same proportion as the index. It is non-diversified.

Sizing a long premium trade, modeling a covered call, or hunting volatility arbitrage all come back to one question: how much has the stock actually moved? Our scanner puts ProShares S&P Kensho Cleantech ETF's historical volatility side-by-side with implied readings across every lookback window, so you can see exactly where CTEX HV is running hot, cold, or in line. Make the CTEX 30 day historical volatility — and every other window — work for your edge instead of against it.