Serena Caldwell
Serena Caldwell writes for Tikr Digest and other Independent Journal publications, covering stocks and equity markets and futures, options and derivatives. Reporting under this byline is prepared by the Independent Journal editorial desk from primary sources, with AI assistance, and reviewed under our editorial policy.
5 articles
Stock Market Today: Delta Delays Riyadh Launch to March
Delta pushed back its Atlanta-Riyadh nonstop from Oct. 23 to March after deadly attacks closed Riyadh's airport and the FAA warned U.S. airlines on the region.
How Stock Indexes Are Calculated: Weighting and Divisors
How stock indexes are calculated: price weighting, market-cap weighting, float adjustment, divisors and rebalancing, with a worked example of the index math.
Stock Market Today: S&P Record, Marvell Jumps, Google Signs Nuclear Deal
Stock market today, Oct. 6: the S&P 500 and Nasdaq closed at records, Marvell rose 5.8% on targets of $70 billion-plus and Google signed a nuclear power deal.
How Stock Market Opening and Closing Auctions Work
How the stock market opening and closing auctions work: order types, imbalance data, price discovery and why the market close price matters for indexes.
Stock market today meets 23/5: Nasdaq files 4 a.m. order handoff
Nasdaq filed an immediately effective rule for a momentary handoff just before 4 a.m. ET, canceling Night Session orders as it moves from night to day trading.