Event Study: How to Read Abnormal Returns From News
A headline crosses the wire: a stock "jumped 4% after earnings." It reads like a clean reaction, cause and effect in one line. Then you pull up the tape and…
A headline crosses the wire: a stock "jumped 4% after earnings." It reads like a clean reaction, cause and effect in one line. Then you pull up the tape and…
A stock closes up 10 percent on Monday and down 10 percent on Tuesday. Add the two moves and you get zero, so the week looks like a wash. The…
By mid-February 2020, Zoom Video Communications had spent almost a year grinding sideways after its IPO pop, and then it stopped grinding. On 18 February 2020 the stock closed at…
Picture a moving-average crossover you're testing. You try fast lengths from 5 to 50, slow lengths from 20 to 200, three different exit rules, and four separate stock universes. Somewhere…
EHang, ticker EH, is back on traders' screens this week. The Chinese eVTOL maker posted its second-quarter 2026 results on 25 August, per the company's own release, and the stock…
Two traders pull up the same stock on the same day and come away describing two different markets. One calls it a quiet session, up a fraction, nothing worth a…
Picture a bid at 50.00 showing 40,000 shares. You add a limit buy at that same price, then watch the prints roll by. Trades go off, the tape ticks, and…
FUTU is back near the top of the day's gainers, and that pulls a familiar chart out of the archive. Long before Futu Holdings was posting record quarters, the FUTU…
A trader opens a brokerage statement and counts twenty tickers. Twenty names feels diversified. Then two of those positions have run so far that together they carry roughly half the…
Watch a fast tape long enough and you'll see it: a stream of prints that keep lifting the offer, one after another, twenty or thirty in a row, and not…