Add in future lock-up expirations (typically 90 to 180 days post-IPO ), and you get more waves ahead as insiders jump ship. The “3-day rule” isn’t law, but it’s common wisdom whereby you let the stock settle for a few sessions before jumping in.

But for new entrants to quantum computing stocks, I would only buy IONQ, as it is ahead of its peers in terms of tech. QBTS and RGTI are riskier and may not live up to the hype a year or two out. The last time IONQ broke below its 30-day moving average,

The S&P 500 slipped 0.4% and is on track for a third straight modest loss after setting its all-time high last week. The Dow Jones Industrial Average was up 8 points, or less than 0.1%, as of 11:50 a.m. Eastern time, and the Nasdaq composite was down 1%.

Wall Street’s record-setting rally is due for a reality check, according to the latest report from Stifel’s Barry Bannister and Thomas Carroll.

Wall Street shares dropped on Wednesday, with a tech selloff extending into a second day, while a key meeting of central bankers later this week remained in focus for currency and rates traders.

The day’s action again centered around stocks caught up in the mania around artificial-intelligence technology.

But investors aren't all on board: Some Wall Street analysts remain bearish on the stock. Morgan Stanley analysts, for example, rate PLUG stock as a sell with a price target of just $0.75 -- roughly 50% below the current share price.