S&P 500 Extends Losing Streak to a Month's Longest

The S&P 500 posted its longest losing streak in a month. Bloomberg's Closing Bell covered the US market close on TV, radio, and YouTube, featuring Romaine Bostick, Matt Miller, Carol Massar, and Tim Stenovec.

The S&P 500 experienced its longest losing streak in a month, closing lower on Thursday, September 25, 2025. Bloomberg's Closing Bell covered the US market close on TV, radio, and YouTube, featuring Romaine Bostick, Matt Miller, Carol Massar, and Tim Stenovec. The market was pressured by losses in technology stocks, with the S&P 500 falling 0.5% to 6,604.72 and the Nasdaq Composite declining 0.5% to 22,384.70.

Among Bitcoin mining peers, Cipher Mining (NASDAQ: CIFR) closed at $11.64, down 17.7%. Trading volume surged to about 153 million shares, roughly 4.1 times its three-month average. The company's loss came despite announcing a 10-year artificial intelligence (AI) hosting agreement with Fluidstack, valued at about $3 billion, with extensions that could bring the total near $7 billion. Alphabet (NASDAQ: GOOGL) will guarantee $1.4 billion of lease obligations under the deal and receive warrants representing roughly 5.4% equity in Cipher. Cipher's loss reflects the continued sensitivity of the stock to swings in Bitcoin, which fell 3.4% to $109,534.50, pulling down crypto-related equities across the sector.

Riot Platforms (NASDAQ: RIOT) dropped 7% to $16.74, and Hut 8 Corp (NASDAQ: HUT) slid 7.9% to $34.88, further illustrating the sector's vulnerability to Bitcoin's performance.

Investors should consider the broader market trends and the specific risks associated with Cipher Mining before making investment decisions. While the AI hosting agreement indicates expansion into high-performance computing, the stock's volatility highlights the importance of thorough analysis and risk management.

Stock Market Today: Cipher Mining Slides on Bitcoin Weakness Despite Google-Backed AI Hosting Agreement^[1] https://www.theglobeandmail.com/investing/markets/stocks/HUT/pressreleases/35048214/stock-market-today-cipher-mining-slides-on-bitcoin-weakness-despite-google-backed-ai-hosting-agreement/