Sunrun Options Market Skews Heavily Bullish with 95% Call Volume

Sunrun Inc. (RUN) experienced an unusually high level of bullish activity in its options market on Wednesday, with call options representing 94.6% of the total volume. The surge in upside bets coincided with a 5.26% gain in the company's stock, which traded at $8.81 by early afternoon, according to market data cited by Investing.com.

Unpacking the Volume

By 1:10 PM ET, a total of 94,608 options contracts had changed hands. The breakdown revealed a stark directional tilt:

• Call Volume: 89,459 contracts
• Put Volume: 5,149 contracts

This activity resulted in a call-to-put volume ratio of approximately 17.4-to-1, a figure that indicates aggressive interest in the stock's potential upside. Such a lopsided ratio often signals strong conviction from a segment of the market that the underlying asset's price will rise.

Key Strikes Signal Speculative Bets

Ad

The trading was concentrated in several out-of-the-money call strikes, suggesting traders were positioning for both near-term and medium-term gains. Notable activity included large blocks targeting strikes well above the current share price.

Significant volume was seen at the October $10 calls, which traded 19,469 contracts against a prior open interest of just 3,795. This high turnover suggests the creation of new positions. Further out, two massive blocks of 20,000 contracts each targeted the November $14 and $19 strikes, representing bets on a rally of 58.9% and 115.7%, respectively, from the day's price.

Context and Caveats

While the heavy call volume points to a bullish outlook, it's important to note that options flow data does not distinguish between contracts being bought or sold. Large call volumes can also result from traders selling covered calls or establishing complex spreads, which do not always represent a purely bullish stance.

Furthermore, while the stock rallied, three-month implied volatility fell by 1.92 percentage points. A decline in volatility alongside a price increase can indicate a more orderly rally rather than a panic-driven buying frenzy. The data suggests traders were aggressively expressing upside interest, but the market was not pricing in extreme or panicked volatility.