PULS vs. SKOR
PULS (PGIM Ultra Short Bond ETF) and SKOR (FlexShares Credit-Scored US Corporate Bond Index Fund) are both exchange-traded funds - PULS is a Ultrashort Bond fund actively managed by PGIM, while SKOR is a Corporate Bonds fund tracking the NorthernTrustUS Corporate Bond Quality Value Index. PULS is actively managed, while SKOR is passively managed. Over the past 5 years, PULS returned 4.14%/yr vs 1.74%/yr for SKOR. At a 0.33 correlation, their price movements are largely independent. PULS charges 0.15%/yr vs 0.22%/yr for SKOR.
Performance
PULS vs. SKOR - Performance Comparison
Loading charts...
Returns By Period
In the year-to-date period, PULS achieves a 1.88% return, which is significantly higher than SKOR's 0.54% return.
PULS
- 1D
- 0.04%
- 1M
- 0.38%
- YTD
- 1.88%
- 6M
- 2.10%
- 1Y
- 4.67%
- 3Y*
- 5.59%
- 5Y*
- 4.14%
- 10Y*
- —
SKOR
- 1D
- -0.05%
- 1M
- 0.37%
- YTD
- 0.54%
- 6M
- 1.02%
- 1Y
- 5.20%
- 3Y*
- 6.13%
- 5Y*
- 1.74%
- 10Y*
- 2.88%
PULS vs. SKOR - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | |
|---|---|---|---|---|---|---|---|---|---|
PULS PGIM Ultra Short Bond ETF | 1.88% | 4.97% | 6.12% | 6.26% | 1.52% | 0.48% | 1.47% | 2.97% | 1.71% |
SKOR FlexShares Credit-Scored US Corporate Bond Index Fund | 0.54% | 7.99% | 4.42% | 7.64% | -9.88% | -1.40% | 8.84% | 10.69% | 1.04% |
Correlation
The correlation between PULS and SKOR is 0.39, which is low. Their price movements are largely independent, making them effective diversification partners.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.39 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.47 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.42 |
Correlation (All Time) Calculated using the full available price history since Apr 10, 2018 | 0.33 |
The correlation between PULS and SKOR shifts across timeframes, from 0.33 (all time) to 0.47 (3 years), reflecting how their relationship changes across market environments.
Compare stocks, funds, or ETFs
Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.
Return for Risk
PULS vs. SKOR — Risk / Return Rank
PULS
SKOR
PULS vs. SKOR - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for PGIM Ultra Short Bond ETF (PULS) and FlexShares Credit-Scored US Corporate Bond Index Fund (SKOR). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.
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.
| PULS | SKOR | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +9.57 | ||
| Sortino ratioReturn per unit of downside risk | +30.15 | ||
| Omega ratioGain probability vs. loss probability | 7.59 | 1.34 | +6.25 |
| Calmar ratioReturn relative to maximum drawdown | 52.47 | 2.38 | +50.09 |
| Martin ratioReturn relative to average drawdown | 317.38 | 8.31 | +309.07 |
Loading charts...
Drawdowns
PULS vs. SKOR - Drawdown Comparison
The maximum PULS drawdown since its inception was -5.85%, smaller than the maximum SKOR drawdown of -15.98%. Use the drawdown chart below to compare losses from any high point for PULS and SKOR.
Loading charts...
Drawdown Indicators
| PULS | SKOR | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -5.85% | -15.98% | +10.13% |
Max Drawdown (1Y)Largest decline over 1 year | -0.09% | -2.09% | +2.00% |
Max Drawdown (3Y)Largest decline over 3 years | -0.34% | -3.11% | +2.77% |
Max Drawdown (5Y)Largest decline over 5 years | -0.79% | -15.13% | +14.34% |
Max Drawdown (10Y)Largest decline over 10 years | — | -15.98% | — |
Current DrawdownCurrent decline from peak | 0.00% | -0.57% | +0.57% |
Average DrawdownAverage peak-to-trough decline | -0.09% | -2.65% | +2.56% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.01% | 0.60% | -0.59% |
Volatility
PULS vs. SKOR - Volatility Comparison
The current volatility for PGIM Ultra Short Bond ETF (PULS) is 0.11%, while FlexShares Credit-Scored US Corporate Bond Index Fund (SKOR) has a volatility of 0.94%. This indicates that PULS experiences smaller price fluctuations and is considered to be less risky than SKOR based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
Loading charts...
Volatility by Period
| PULS | SKOR | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 0.11% | 0.94% | -0.83% |
Volatility (6M)Calculated over the trailing 6-month period | 0.30% | 2.04% | -1.74% |
Volatility (1Y)Calculated over the trailing 1-year period | 0.41% | 2.71% | -2.30% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 0.70% | 4.43% | -3.73% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 1.33% | 4.90% | -3.57% |
PULS vs. SKOR - Expense Ratio Comparison
PULS has a 0.15% expense ratio, which is lower than SKOR's 0.22% expense ratio. Despite the difference, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.
Dividends
PULS vs. SKOR - Dividend Comparison
PULS's dividend yield for the trailing twelve months is around 4.57%, less than SKOR's 4.66% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
PULS PGIM Ultra Short Bond ETF | 4.57% | 4.78% | 5.62% | 5.48% | 2.30% | 1.19% | 1.85% | 2.69% | 1.87% | 0.00% | 0.00% | 0.00% |
SKOR FlexShares Credit-Scored US Corporate Bond Index Fund | 4.66% | 4.70% | 4.90% | 3.90% | 2.57% | 2.55% | 3.38% | 3.53% | 2.85% | 2.46% | 2.74% | 2.25% |
Frequently Asked Questions
PULS and SKOR have a correlation of 0.39, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
SKOR has higher volatility (0.94%) compared to PULS (0.11%). In terms of maximum drawdown, PULS dropped -5.85% vs SKOR's -15.98%.
On 5-year performance, PULS leads with 4.14% vs 1.74% for SKOR. On fees, PULS is cheaper at 0.15% per year. On volatility, PULS has been the lower-risk option at 0.11%. The better choice depends on whether you care most about return, fees, risk, or income.
Over the 5-year period, PULS has performed better with a 4.14% return vs 1.74%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
PULS is cheaper with a 0.15% expense ratio, compared with 0.22% for SKOR.
SKOR has the higher dividend yield at 4.66%, compared with 4.57% for PULS.
PULS is categorized as Ultrashort Bond, while SKOR is Corporate Bonds. They also come from different issuers: PGIM and Northern Trust. Their fees differ too: 0.15% for PULS and 0.22% for SKOR.
PULS currently has the higher Sharpe Ratio (11.41 vs 1.84), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.
Find the right allocation for PULS and SKOR
Add both to a portfolio and optimize allocations for your target — whether that's maximizing returns, minimizing drawdowns, or balancing risk across holdings.
Open Portfolio Optimizer