Thornburg Summit Fund Class I (TSUMX)

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The chart shows the growth of an initial investment of $10,000 in Thornburg Summit Fund Class I, comparing it to the performance of the S&P 500 index or another benchmark. All prices have been adjusted for splits and dividends.

Thornburg Summit Fund Class I (TSUMX) has returned -0.01% so far this year and 19.74% over the past 12 months.

Based on dividend-adjusted daily data since Mar 12, 2019, TSUMX's average daily return is +0.05%, while the average monthly return is +0.97%. At this rate, your investment would double in approximately 6.0 years.

Historically, 67% of months were positive and 33% were negative. The best month was Apr 2020 with a return of +7.8%, while the worst month was Mar 2020 at -6.3%. The longest winning streak lasted 11 consecutive months, and the longest losing streak was 3 months.

On a daily basis, TSUMX closed higher 51% of trading days. The best single day was Nov 18, 2021 with a return of +17.2%, while the worst single day was Nov 19, 2021 at -14.6%.

Thornburg Summit Fund Class I has an annualized alpha of 5.55%, beta of 0.49, and R² of 0.49 versus S&P 500 Index. Calculated based on daily prices since March 13, 2019.

• This fund participates in less of S&P 500 Index's moves in both directions, but captures a larger share of gains (61.87%) than losses (55.48%) — typical of diversified or defensive assets.
• Beta of 0.49 may look defensive, but with R² of 0.49 this fund is largely uncorrelated with S&P 500 Index — low beta reflects independence, not downside protection. See the Volatility section for a true picture of this fund's risk.
• R² of 0.49 means the benchmark explains less than half of this fund's behavior — treat beta with caution or consider switching to a more representative benchmark.

TSUMX has an expense ratio of 0.70%, placing it in the medium range.

TSUMX ranks 90 for risk / return — in the top 90% of mutual funds on our site. This means strong returns relative to risk — exactly what professional investors look for. Well-suited for investors who want to maximize return per unit of risk.

The table below present risk-adjusted performance metrics for Thornburg Summit Fund Class I (TSUMX) and compare them to a chosen benchmark (S&P 500 Index).

Thornburg Summit Fund Class I provided a 6.82% dividend yield over the last twelve months, with an annual payout of $0.98 per share. The fund has been increasing its distributions for 2 consecutive years.

The table displays the monthly dividend distributions for Thornburg Summit Fund Class I. The dividends shown in the table have been adjusted to account for any splits that may have occurred.

The Drawdowns chart displays portfolio losses from any high point along the way. Drawdowns are calculated considering price movements and all distributions paid, if any.

The table below displays the maximum drawdowns of the Thornburg Summit Fund Class I. A maximum drawdown is a measure of risk, indicating the largest reduction in portfolio value due to a series of losing trades.

The maximum drawdown for the Thornburg Summit Fund Class I was 28.87%, occurring on Oct 14, 2022. Recovery took 584 trading sessions.

The current Thornburg Summit Fund Class I drawdown is 6.20%.

The chart below shows the rolling one-month volatility.