The highest closing price for Bitcoin (BTC) in a month all-time was $106,090.97, this month. It is up 1.4% for the month. The latest price is $105,371.07.
Sorry, I couldn't find pricing data for that day. The closing price for the S&P 500 (GSPC) on December 31 was $5,881.63. It was down 0.6% for the day. The latest price is $6,192.36.
International Business Machines (IBM) has had the highest return since January 1, 2025 by a US stock in the Dow Jones Industrial Average (DJI), returning 26.6%.