<div id="readability-page-1">Solar stock Sunrun Inc (NASDAQ:RUN) is soaring to 52-week highs, up 8% at $18.65 at last glance, after an upgrade from Jefferies to &#34;buy&#34; from &#34;hold&#34; with a price-target hike to $21 from $11. The firm sees strong growth for RUN into 2026, viewing the company as &#34;best positioned&#34; amongst its peers as the top residential solar TPO in the U.S. market. Today's pop has RUN breaking past a ceiling at the $18 level that kept a lid on gains in September, earlier topping $20.02. Year to date, the equity is up 110.7%. Options traders are chiming in on the surge, with 25,000 calls and 11,000 puts exchanged so far -- triple the amount typically seen at this point in a session. The January 2027 5-strike put is the most popular, followed by the October 20 call, with new positions being sold to open at the November 25 call. Calls have been much more popular than usual over the last couple weeks. RUN's 10-day call/put volume ratio of 9.89 at the International Securities Exchange (ISE), Cboe Options Exchange (CBOE), and NASDAQ OMX PHLX (PHLX) ranks higher than 96% of readings from the past year. Some of today's price action could be attributed to short covering. Short interest represents a large 25.5% of the stock's available float, over three days' worth of pent-up buying power.</div>

Jefferies upgraded Sunrun Inc (NASDAQ:RUN) to "buy" from "hold," raising the price target to $21 from $11. Following the upgrade, RUN's stock surged 8% to $18.65, reaching 52-week highs. The firm anticipates strong growth for RUN through 2026, positioning it as a leader in the U.S. residential solar market. Year-to-date, the stock has increased by 110.7%. Options trading has also spiked, with a significant volume of calls exchanged, indicating bullish sentiment among traders.

Sunrun Stock Shines on Jefferies Bull Note