On October 9, Vistra Energy Corp. rose 3.23% in regular trading, trading at $161.19/share, with turnover of $129 million. The move extended the stock's strong recent run following the US Department of Energy's conditional loan commitment of up to $4.2 billion for nuclear plant upgrades in Pennsylvania and Ohio.

The DOE announcement, made on October 6, provides funding to modernize facilities at Beaver Valley, Davis-Besse, and Perry, preserving nearly 4 gigawatts of baseload power and extending operations by 20 years. The news had already driven a cumulative two-day gain of over 14% earlier in the week, though shares pulled back on October 8 amid profit-taking. Options flow has been mixed, with some large call spreads and the recent purchase of $170 calls suggesting tempered near-term bullishness, while earlier large put buying reflected caution. In the broader independent power producer sector, Talen Energy rose 3.46%, AES Corp was flat, Hallador Energy fell 1.21%, TransAlta gained 0.30%, and Deep Fission slipped 0.64%. Vistra Corp. operates as an integrated retail electricity and power generation company serving approximately 3.5 million customers with about 37,000 megawatts of capacity across natural gas, nuclear, coal, solar, and battery storage.

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