Why are my % changes different on the Portfolio page?
There will be times where your "Today's % Change" will be different on the symphony level of your portfolio than your "Today's % Change" for your total portfolio summary. This is due to a difference in calculations for end-of-day values for assets and portfolios from our broker partner, Alpaca.
At the end of each market day, Alpaca calculates end-of-day prices for tickers, which will be updated at ~8pm ET. This is based off of the adjusted close price from that day. Your "Today's % Change" at a symphony level is calculated based off of this 8pm ET price from the day before and the real-time price.
For portfolio-level statistics, Alpaca calculates an end-of-day value every day at midnight and will be updated at ~2:30am ET. This value is based off of the after-hours prices of your assets at the time of calculation. Your "Today's % Change" at a portfolio level is calculated based off of this 8pm ET value from the day before and the real-time price.