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Mortgage rates edge up this week but remain below the year-to-date average
Seeking Alpha News (Thu, 11-Dec 12:17 PM ET)
The SPDR Portfolio Mortgage Backed Bond ETF seeks to provide investment results that, before fees and expenses, correspond generally to the price and yield performance of the Bloomberg U.S. MBS Index (the "Index"). The Bloomberg U.S. MBS Index (the "MBS Index") measures the performance of the U.S. agency mortgage pass-through segment of the U.S. investment grade bond market. The term "U.S. agency mortgage pass-through security" refers to a category of pass-through securities backed by pools of mortgages and issued by one of the following U.S. government-sponsored enterprises: Government National Mortgage Association ("GNMA"); Federal National Mortgage Association ("FNMA") and Federal Home Loan Mortgage Corporation ("FHLMC").
State Street SPDR Portfolio Mortgage Backed Bond ETF trades on the ARCA stock market under the symbol SPMB.
As of December 15, 2025, SPMB stock price climbed to $22.47 with 155,453 million shares trading.
SPMB has a beta of -0.06, meaning it tends to be less sensitive to market movements. SPMB has a correlation of 0.05 to the broad based SPY ETF.
SPMB has a market cap of $6.56 billion. This is considered a Mid Cap stock.
In the last 3 years, SPMB traded as high as $22.76 and as low as $20.00.
SPMB has underperformed the market in the last year with a return of +6.6%, while the SPY ETF gained +13.9%. In the last 3 month period, SPMB fell short of the market, returning +0.7%, while SPY returned +3.9%. However, in the most recent 2 weeks SPMB has outperformed the stock market by returning 0.0%, while SPY returned -0.4%.
SPMB support price is $22.38 and resistance is $22.50 (based on 1 day standard deviation move). This means that using the most recent 20 day stock volatility and applying a one standard deviation move around the stock's closing price, stastically there is a 67% probability that SPMB shares will trade within this expected range on the day.
