According to Edward Dowd, Nortel Networks’ share price topped in July 2000 after the company reported a quarter-over-quarter operating cash flow deceleration from 1.2 billion dollars to 800 million dollars, source: Edward Dowd on X, Nov 20, 2025, https://twitter.com/DowdEdward/status/1991337889821868073. He questions whether cash flow remains the decisive factor in today’s market, underscoring a trading takeaway to monitor operating cash flow momentum around earnings for potential risk signals in high-beta names, source: Edward Dowd on X, Nov 20, 2025, https://twitter.com/DowdEdward/status/1991337889821868073. For crypto-exposed equities, the post highlights applying the same cash-flow lens when evaluating listed miners and exchanges to gauge risk appetite across broader risk assets, source: Edward Dowd on X, Nov 20, 2025, https://twitter.com/DowdEdward/status/1991337889821868073.