All TSP funds except the bond F fund posted gains in April, led by the international stock I fund, up 2.01 percent, while the large company stock C fund gained 0.38 percent and the small company stock S fund rose 0.28 percent. The government securities G fund gained 0.23 percent but the F fund dropped 0.73 percent. The April returns, all positive, for the lifecycle L funds were: Income, 0.3; 2020, 0.36; 2030, 0.55; 2040, 0.62; 2050, 0.69.

See also, TSP Posts Solid Gains in April

Some big misses or surprises moved individual stocks. Amazon and Facebook surged this week, thanks to particularly strong quarterly results. Exxon Mobil had a big price decline due to a disappointing quarter. These companies are all in the top 10 largest holdings of the C Fund, but thanks to the inherent diversification of index funds, the ride was smoother for C Fund investors than holders of individual stocks of these companies as their results balanced out with hundreds of other companies.

For year-to-date, last-12-month returns and TSP insight, visit https://www.fedweek.com/thrift-savings-plan/