Cloudflare Options Volume Jumps as Stock Reaches 52-Week High

Cloudflare Inc. (NET) shares rallied significantly on September 21, closing up 8.67% at $351.67 after touching a new 52-week high of $352.45 during the session. The sharp price movement was accompanied by a surge in options trading, offering a nuanced view of investor sentiment as the stock enters uncharted territory.

Bullish Sentiment Dominates Options Flow

Activity in the options market showed a clear bullish tilt, with call options outpacing put options by a significant margin. According to market data, traders exchanged 26,864 call contracts compared to 12,439 put contracts, resulting in a call-to-put ratio of approximately 2.16-to-1.

A high volume of trading was concentrated in short-term call options. Notably, the October 16, 2026, $350 strike call saw volume of 1,121 contracts, exceeding the existing open interest of 806. This pattern suggests traders were opening new positions to bet on continued upward momentum in the coming weeks.

Hedging Activity Signals Caution

Despite the bullish call volume, other large trades indicated that some market participants are taking protective measures. A notable transaction was a November 20, 2026, $350/$370 put spread, a defined-risk strategy often used to hedge a long stock position against a potential decline.

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The newness of this position, indicated by zero prior open interest on one leg of the trade, suggests it was likely established by an institutional investor looking to lock in recent gains. This type of activity, combined with a 2.97 percentage point jump in 3-month implied volatility, signals that traders are pricing in the potential for wider price swings ahead.

Technical Outlook and Key Levels

The stock's powerful trend is confirmed by technical indicators, though some suggest it may be in overbought territory. The weekly Relative Strength Index (RSI) is at a healthy 65.4, but the weekly StochRSI has reached 96.4, a level often associated with overbought conditions.

For traders, the immediate resistance level to watch is near the new high of $352.53, which aligns with a key weekly pivot point. On the downside, initial support is seen in the zone between the $325 pivot and the $312 S1 support level. The combination of bullish speculation and institutional hedging suggests that while conviction in the rally is strong, investors are also preparing for potential volatility.