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ISIN
US7425533160
CUSIP
742553316
Issuer
Principal
Inception Date
Dec 30, 2009
Min. Investment
$0
Distribution Policy
Distributing
Asset Class
Bond

Share Price Chart


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Performance

PNIIX Performance Chart

Principal Bond Market Index Fund (PNIIX) is up 0.6% since the beginning of the year. PNIIX is currently trading at $9 per share. Investors who bought $1,000 worth of PNIIX shares 5 years ago would now be looking at an investment worth $996.


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S&P 500 Index

Returns By Period

Principal Bond Market Index Fund (PNIIX) has returned 0.59% so far this year and 4.61% over the past 12 months. Over the last ten years, PNIIX has returned 1.44% per year, falling short of the S&P 500 Index benchmark, which averaged 13.88% annually.


Principal Bond Market Index Fund

1D
0.23%
1M
0.82%
YTD
0.59%
6M
0.59%
1Y
4.61%
3Y*
3.93%
5Y*
-0.08%
10Y*
1.44%

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)

PNIIX Monthly Returns History

Based on dividend-adjusted daily data since Dec 31, 2009, PNIIX's average daily return is +0.01%, while the average monthly return is +0.21%. At this rate, an investment would double in approximately 27.5 years.

Historically, 58% of months were positive and 42% were negative. The best month was Nov 2023 with a return of +4.7%, while the worst month was Sep 2022 at -4.3%. The longest winning streak lasted 8 consecutive months, and the longest losing streak was 6 months.

On a daily basis, PNIIX closed higher 44% of trading days. The best single day was Dec 20, 2024 with a return of +3.3%, while the worst single day was Dec 23, 2024 at -3.2%.


JanFebMarAprMayJunJulAugSepOctNovDecTotal
20260.23%1.64%-1.73%0.12%0.23%0.12%0.59%
20250.60%2.16%-0.00%0.35%-0.70%1.53%-0.23%1.16%1.03%0.68%0.56%-0.32%7.01%
2024-0.12%-1.53%0.84%-2.49%1.71%0.96%2.37%1.39%1.37%-2.48%1.04%-1.73%1.17%
20233.34%-2.66%2.61%0.58%-1.03%-0.35%-0.12%-0.70%-2.59%-1.69%4.66%3.69%5.55%
2022-2.04%-1.14%-2.84%-3.79%0.67%-1.56%2.38%-2.77%-4.33%-1.31%3.62%-0.73%-13.26%
2021-0.79%-1.68%-0.91%0.81%0.20%0.80%1.10%-0.20%-0.89%-0.00%0.20%-0.31%-1.68%

Benchmark Metrics

Principal Bond Market Index Fund has an annualized alpha of 2.79%, beta of -0.02, and R2 of 0.01 versus S&P 500 Index. Calculated based on daily prices since December 31, 2009.

  • This fund participates in less of S&P 500 Index's moves in both directions, but captures a larger share of gains (9.54%) than losses (4.96%) - typical of diversified or defensive assets.
  • Beta of -0.02 may look defensive, but with R2 of 0.01 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 0.01 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
2.79%
Beta
-0.02
0.01
Upside Capture
9.54%
Downside Capture
4.96%

Expense Ratio

PNIIX has an expense ratio of 0.15%, which is considered low.


Return for Risk

Risk / Return Rank

PNIIX ranks 21 for risk / return — below 21% of mutual funds on our site. The returns aren't fully compensating for the risk involved. This isn't necessarily a dealbreaker, but factor it into your decision — especially if you're risk-averse.


PNIIX Risk / Return Rank: 2121
Overall Rank
PNIIX Sharpe Ratio Rank: 2020
Sharpe Ratio Rank
PNIIX Sortino Ratio Rank: 2222
Sortino Ratio Rank
PNIIX Omega Ratio Rank: 2020
Omega Ratio Rank
PNIIX Calmar Ratio Rank: 2323
Calmar Ratio Rank
PNIIX Martin Ratio Rank: 2121
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 Principal Bond Market Index Fund (PNIIX) 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.


PNIIXBenchmarkDifference
Sharpe ratioReturn per unit of total volatility

-0.82

Sortino ratioReturn per unit of downside risk

-0.92

Omega ratioGain probability vs. loss probability

1.22

1.37

-0.15

Calmar ratioReturn relative to maximum drawdown

1.68

2.78

-1.11

Martin ratioReturn relative to average drawdown

4.84

12.44

-7.60

Dividends

Dividend History

Principal Bond Market Index Fund provided a 3.99% dividend yield over the last twelve months, with an annual payout of $0.34 per share.


0.00%5.00%10.00%15.00%20.00%$0.00$0.50$1.00$1.50$2.0020152016201720182019202020212022202320242025
Dividends
Dividend Yield
PeriodTTM20252024202320222021202020192018201720162015
Dividend$0.34$0.34$0.30$0.35$0.14$0.20$1.90$0.27$0.27$0.26$0.19$0.23

Dividend yield

3.99%4.01%3.60%4.18%1.66%2.03%18.60%2.40%2.51%2.35%1.78%2.10%

Monthly Dividends

The table displays the monthly dividend distributions for Principal Bond Market Index 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$0.00$0.00$0.00$0.00$0.00
2025$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.34$0.34
2024$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.30$0.30
2023$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.35$0.35
2022$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.14$0.14
2021$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.00$0.20$0.20

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 Principal Bond Market Index 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 Principal Bond Market Index Fund was 18.76%, occurring on Oct 24, 2022. The portfolio has not yet recovered.

The current Principal Bond Market Index Fund drawdown is 2.53%.


Related event

Drawdown

Fall

Recovery

Underwater

Bear market2022
-18.76%Oct 2022
2y 2mo
5y 10moAug 2020 - now
COVID crash2020
-6.21%Mar 2020
9d2mo 23d
3mo 2dMar 2020 - Jun 2020
2013 pullback2013
-5.11%Sep 2013
4mo 5d8mo 12d
1y 12dMay 2013 - May 2014
2016 pullback2016
-4.55%Dec 2016
5mo 8d8mo 23d
1y 1moJul 2016 - Sep 2017
2011 pullback2011
-3.54%Feb 2011
3mo 7d3mo 5d
6mo 12dNov 2010 - May 2011

Drawdown Indicators


PNIIXBenchmarkDifference

Max Drawdown

Largest peak-to-trough decline

-18.76%

-56.78%

+38.02%

Max Drawdown (1Y)

Largest decline over 1 year

-2.76%

-9.10%

+6.34%

Max Drawdown (3Y)

Largest decline over 3 years

-6.25%

-18.90%

+12.65%

Max Drawdown (5Y)

Largest decline over 5 years

-18.14%

-25.43%

+7.29%

Max Drawdown (10Y)

Largest decline over 10 years

-18.76%

-33.92%

+15.16%

Current Drawdown

Current decline from peak

-2.53%

-1.80%

-0.73%

Average Drawdown

Average peak-to-trough decline

-3.44%

-10.71%

+7.27%

Ulcer Index

Depth and duration of drawdowns from previous peaks

0.95%

2.03%

-1.08%

Volatility

Volatility Chart

The chart below shows the rolling one-month volatility.


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Portfolio Analyzer

Build a portfolio with PNIIX

Add Principal Bond Market Index Fund to a portfolio and analyze allocations for your target — whether that's maximizing returns, minimizing drawdowns, or balancing risk across holdings.

Open Portfolio Analyzer with PNIIX