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ISIN
US6804145059
Inception Date
Mar 5, 1998
Min. Investment
$1,000
Distribution Policy
Distributing
Asset Class
Bond

Share Price Chart


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Performance

OWMBX Performance Chart

Old Westbury Municipal Bond Fund (OWMBX) is up 0.6% since the beginning of the year. OWMBX is currently trading at $12 per share. Investors who bought $1,000 worth of OWMBX shares 5 years ago would now be looking at an investment worth $1,033.


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S&P 500 Index

Returns By Period

Old Westbury Municipal Bond Fund (OWMBX) has returned 0.57% so far this year and 4.15% over the past 12 months. Over the last ten years, OWMBX has returned 1.39% per year, falling short of the S&P 500 Index benchmark, which averaged 13.88% annually.


Old Westbury Municipal Bond Fund

1D
0.09%
1M
0.99%
YTD
0.57%
6M
0.74%
1Y
4.15%
3Y*
2.73%
5Y*
0.66%
10Y*
1.39%

Benchmark (S&P 500 Index)

1D
-0.37%
1M
-0.01%
YTD
9.16%
6M
8.64%
1Y
25.22%
3Y*
19.78%
5Y*
11.99%
10Y*
13.88%
*Multi-year figures are annualized to reflect compound growth (CAGR)

OWMBX Monthly Returns History

Based on dividend-adjusted daily data since Mar 6, 1998, OWMBX's average daily return is +0.01%, while the average monthly return is +0.26%. At this rate, an investment would double in approximately 22.2 years.

Historically, 63% of months were positive and 37% were negative. The best month was Nov 2023 with a return of +4.1%, while the worst month was Feb 2008 at -4.4%. The longest winning streak lasted 11 consecutive months, and the longest losing streak was 6 months.

On a daily basis, OWMBX closed higher 37% of trading days. The best single day was Mar 25, 2020 with a return of +2.9%, while the worst single day was Dec 19, 2005 at -2.3%.


JanFebMarAprMayJunJulAugSepOctNovDecTotal
20260.86%0.77%-2.10%0.61%0.17%0.29%0.57%
20250.70%0.52%-1.01%-0.18%0.26%0.76%0.18%0.79%1.11%0.61%0.17%0.30%4.29%
2024-0.17%-0.17%-0.18%-0.95%-0.53%1.15%0.88%0.96%0.63%-1.38%1.05%-0.81%0.43%
20232.10%-2.14%2.09%-0.34%-0.95%0.49%0.09%-0.78%-1.92%-0.54%4.08%1.98%4.03%
2022-2.29%-0.42%-2.26%-1.81%1.32%-0.62%1.92%-1.80%-2.50%-0.27%3.06%0.33%-5.39%
20210.16%-1.35%0.09%0.57%0.08%0.07%0.56%-0.24%-0.75%-0.24%0.41%0.04%-0.63%

Benchmark Metrics

Old Westbury Municipal Bond Fund has an annualized alpha of 3.24%, beta of -0.01, and R2 of 0.00 versus S&P 500 Index. Calculated based on daily prices since March 06, 1998.

  • This fund captured 8.35% of S&P 500 Index gains and tended to rise during its downturns (downside capture of -4.25%) - a profile typical of hedging or uncorrelated assets.
  • Beta of -0.01 may look defensive, but with R2 of 0.00 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 0.00 means this fund moves largely independently of S&P 500 Index - capture ratios reflect limited market correlation rather than active downside protection. Consider using a more representative benchmark.

Alpha
3.24%
Beta
-0.01
0.00
Upside Capture
8.35%
Downside Capture
-4.25%

Expense Ratio

OWMBX has an expense ratio of 0.57%, placing it in the medium range.


Return for Risk

Risk / Return Rank

OWMBX ranks 62 for risk / return — better than 62% of mutual funds on our site. You're getting solid returns for the risk taken. A good sign, especially for investors who want growth without excessive volatility.


OWMBX Risk / Return Rank: 6262
Overall Rank
OWMBX Sharpe Ratio Rank: 8181
Sharpe Ratio Rank
OWMBX Sortino Ratio Rank: 8282
Sortino Ratio Rank
OWMBX Omega Ratio Rank: 9292
Omega Ratio Rank
OWMBX Calmar Ratio Rank: 2929
Calmar Ratio Rank
OWMBX Martin Ratio Rank: 2323
Martin Ratio Rank
The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

Return / Risk — by metrics

The table below present risk-adjusted performance metrics for Old Westbury Municipal Bond Fund (OWMBX) and compare them to S&P 500 Index.

Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.


OWMBXBenchmarkDifference
Sharpe ratioReturn per unit of total volatility

+0.43

Sortino ratioReturn per unit of downside risk

+0.84

Omega ratioGain probability vs. loss probability

1.66

1.37

+0.29

Calmar ratioReturn relative to maximum drawdown

1.91

2.78

-0.88

Martin ratioReturn relative to average drawdown

5.21

12.44

-7.23

Dividends

Dividend History

Old Westbury Municipal Bond Fund provided a 2.60% dividend yield over the last twelve months, with an annual payout of $0.30 per share. The fund has been increasing its distributions for 3 consecutive years.


1.00%1.50%2.00%2.50%$0.00$0.05$0.10$0.15$0.20$0.25$0.30$0.3520152016201720182019202020212022202320242025
Dividends
Dividend Yield
PeriodTTM20252024202320222021202020192018201720162015
Dividend$0.30$0.30$0.29$0.23$0.13$0.25$0.32$0.21$0.17$0.14$0.19$0.17

Dividend yield

2.60%2.61%2.54%2.01%1.15%2.06%2.55%1.68%1.45%1.18%1.61%1.40%

Monthly Dividends

The table displays the monthly dividend distributions for Old Westbury Municipal Bond Fund. The dividends shown in the table have been adjusted to account for any splits that may have occurred.


JanFebMarAprMayJunJulAugSepOctNovDecTotal
2026$0.00$0.00$0.07$0.00$0.00$0.07$0.15
2025$0.00$0.00$0.07$0.00$0.00$0.08$0.00$0.00$0.08$0.00$0.00$0.08$0.30
2024$0.00$0.00$0.07$0.00$0.00$0.07$0.00$0.00$0.07$0.00$0.00$0.08$0.29
2023$0.00$0.00$0.05$0.00$0.00$0.06$0.00$0.00$0.06$0.00$0.00$0.07$0.23
2022$0.00$0.00$0.02$0.00$0.00$0.03$0.00$0.00$0.03$0.00$0.00$0.05$0.13
2021$0.00$0.00$0.03$0.00$0.00$0.03$0.00$0.00$0.03$0.00$0.00$0.16$0.25

Drawdowns

Drawdowns Chart

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.


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Worst Drawdowns

The table below displays the maximum drawdowns of the Old Westbury Municipal Bond Fund. 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 Old Westbury Municipal Bond Fund was 9.54%, occurring on Oct 15, 2008. Recovery took 56 trading sessions.

The current Old Westbury Municipal Bond Fund drawdown is 1.05%.


Related event

Drawdown

Fall

Recovery

Underwater

Financial crisis2007–2009
-9.54%Oct 2008
8mo 25d2mo 23d
11mo 18dJan 2008 - Jan 2009
Bear market2022
-9.44%Oct 2022
1y 8mo2y 10mo
4y 6moFeb 2021 - Sep 2025
COVID crash2020
-8.83%Mar 2020
10d3mo 22d
4mo 2dMar 2020 - Jul 2020
1999 pullback1999
-7.42%Oct 1999
8mo 27d9mo 19d
1y 6moFeb 1999 - Aug 2000
2004 pullback2004
-6.09%May 2004
2mo 3d5mo 15d
7mo 18dMar 2004 - Oct 2004

Drawdown Indicators


OWMBXBenchmarkDifference

Max Drawdown

Largest peak-to-trough decline

-9.54%

-56.78%

+47.24%

Max Drawdown (1Y)

Largest decline over 1 year

-2.45%

-9.10%

+6.65%

Max Drawdown (3Y)

Largest decline over 3 years

-3.81%

-18.90%

+15.09%

Max Drawdown (5Y)

Largest decline over 5 years

-9.37%

-25.43%

+16.06%

Max Drawdown (10Y)

Largest decline over 10 years

-9.44%

-33.92%

+24.48%

Current Drawdown

Current decline from peak

-1.05%

-1.80%

+0.75%

Average Drawdown

Average peak-to-trough decline

-1.64%

-10.71%

+9.07%

Ulcer Index

Depth and duration of drawdowns from previous peaks

0.85%

2.03%

-1.18%

Volatility

Volatility Chart

The chart below shows the rolling one-month volatility.


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Portfolio Analyzer

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