How Much Volume Trades at the Close
How much volume trades at the close? We measure the closing auction's share of consolidated daily volume for NYSE and Nasdaq names, day type by day type.
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How Long Can a Stock Trade Under $1? The Rules
How long can a stock trade under $1? The Nasdaq and NYSE delisting clocks, the 2025 rule changes, why reverse splits often fail, and today's sub-$1 count.
Nasdaq Opening Cross Explained: 4 a.m. to 9:30
How the Nasdaq opening cross sets the 9:30 a.m. open: the 4:00 a.m. to 9:30 timeline, MOO, LOO and OIO cutoffs, the NOII feed, and how the price is picked.
Nasdaq Closing Cross Explained: NOII and MOC
How the Nasdaq closing cross works: MOC and LOC cutoffs, imbalance-only orders, the NOII feed from 3:50 p.m., and one real 4:00:00 print read off the tape.
How an IPO's Opening Price Is Set
How an IPO's opening price is set on Nasdaq and the NYSE, from the display-only period to the launch call, and why the first print can land hours after 9:30.
When Did the US Stock Market Start? 1792
The US stock market started with the 1792 Buttonwood Agreement, signed by 24 brokers. Every date that follows, and how a call auction became 9:30 to 4:00.