Dow Up, Cyclerion Therapeutics Up

All three major indices rose today.

The NASDAQ rose 250.32 points.

The DOW rose 224.23 points.

The S&P rose 46.80 points.

Stocks moved higher as investors grew more optimistic that the conflict involving Iran could ease, which helped push oil prices lower and improved risk appetite across Wall Street. Reuters reported that falling oil supported the broader market, while AP said the rally was broad enough to lift all the major indexes again after Tuesday's surge.

The advance was led by technology shares, with Reuters reporting a 1.16% gain for the Nasdaq and strength in major growth names including Alphabet, Meta, and Amazon. Energy shares lagged as oil retreated, while airlines and other fuel-sensitive companies benefited from the pullback in crude.

All this as Cyclerion Therapeutics shares rose $4.83 to end the day at $6.38 per share.

Cyclerion's surge was news-driven. Cyclerion and Korsana Biosciences announced a merger agreement on April 1. The transaction is backed by an approximately $380 million private placement and is expected to close in the third quarter of 2026, subject to approvals and other conditions.

In combination, today's move in Cyclerion appears to reflect investors rapidly repricing the stock around the merger announcement rather than ordinary speculative trading alone. The gain's size, more than 300% in a single session, is consistent with a dramatic valuation reset following a transformational deal announcement.