RFIX vs VOO: Performance, Holdings, Fees & Risk

RFIX and VOO are ETFs, but they can differ materially in exposure, yield, fees and risk. RFIX is Simplify Bond Bull ETF, while VOO is Vanguard S&P 500 ETF. VOO is broader by holdings count, with 508 positions versus 9 for RFIX. VOO has the lower expense ratio. Current AlgovestIQ evidence has VOO ahead on AIQ Score, 64 versus 43.

Market data as of Oct 21, 2026 market close· Fund characteristics as of Oct 21, 2026
RFIX
Simplify
vs
VOO
Vanguard
RFIX
Simplify Bond Bull ETF
Issuer
Simplify
Inception
2024-12-09
VOO
Vanguard S&P 500 ETF
Issuer
Vanguard
Inception
2010-09-07

What is the main difference between RFIX and VOO?

RFIX puts 95% of its assets in Government, while VOO spreads across 11 sectors with none above 39%.

Expense ratio
RFIX
0.5%
VOO
0.03%
Lower annual fund costVOO
Holdings
RFIX
9
VOO
508
Broader reported basketVOO
1Y return
RFIX
-18%
VOO
+16.4%
Trailing performanceVOO
Annualized volatility
RFIX
27.7%
VOO
12.8%
Lower realized volatilityVOO
MetricRFIXVOO
Fund
Expense ratio0.5%0.03%
Holdings9508
Distribution yieldTrailing 12 months4.47%1.05%
Average volume380,5937,814,237
Performance
1Y return-18%+16.4%
YTD return+0.5%+12.7%
Risk
Annualized volatility27.7%12.8%
Max drawdown (1Y)-23.3%-9.2%
Beta0.101.00
Sharpe ratio-0.660.91
Sortino ratio-1.111.38
AlgovestIQ
AIQ Score43/10064/100
AIQ Edge Score2/109/10
Momentum62/10064/100
Risk Resilience27/10087/100

AlgovestIQ AIQ Comparison

Simplify Bond Bull ETF vs Vanguard S&P 500 ETF

Data as of Oct 21, 2026· market close· Coverage 64/66 fields· High confidence
AIQ VerdictCompetitiveAIQ Comparison Conviction 9/10

VOO leads

VOO leads by 21 AIQ points, primarily on Risk Resilience and Quality, but the lead has narrowed from 26 points over 30 sessions.

Competitive: 4 of 4 evidence groups support VOO, its lead is narrowing, and its current signal state is conflicted.

Evidence agreement: 4 of 4Comparison trend: Weakening
RFIX

Simplify Bond Bull ETF

AIQ Score
43/100
AIQ Edge Score
2/10
VOO

Vanguard S&P 500 ETF

Leads
AIQ Score
64/100
AIQ Edge Score
9/10

The Algovestiq AIQ Score currently favors VOO over RFIX, 64 versus 43 as of Oct 21, 2026. VOO's advantage is driven primarily by stronger risk resilience and quality. VOO also shows the weaker technical structure relative to its 50-day moving average. 4 of 4 covered evidence groups favor VOO today, and the comparison is rated Competitive on stability: the leader's advantage has been narrowing. VOO lead: Weakening — the AIQ differential moved from 26 to 21 points over 30 sessions.

Compare Simplify Bond Bull ETF and Vanguard S&P 500 ETF across performance, expense ratio, dividend yield, drawdown, volatility and the Algovestiq AIQ Score.

RFIX vs VOO: which fits what

Each row is settled by a single measure. Where the gap is too small to matter it reads Similar, and no row decides the comparison as a whole.

If you wantRFIXVOOFits
Lower costExpense ratio0.5%0.03%VOO
Broader diversificationNumber of holdings9508VOO
Higher incomeTrailing 12-month distribution yield4.47%1.05%RFIX
Smaller drawdownsMax drawdown, 1 year-23.3%-9.2%VOO
Lower volatilityAnnualized volatility, 1 year27.7%12.8%VOO

Similar means the gap is within 0.01 percentage points of expense ratio, 25% more holdings, 3 points of top-10 weight, 0.2 points of yield, 2 points of drawdown or 1 point of volatility. Past drawdowns and volatility describe the funds’ history, not their future.

Currently unavailable

Performance over time

Total return with distributions reinvested, from daily closes for both ETFs.

RFIX
-35.3%
VOO
+30.6%

Total return comparison

Growth of $10,000, distributions reinvested

RFIX $6,470 · VOO $13,061

Split-adjusted closes; each distribution is reinvested at the close on its ex-dividend date. Taxes and trading costs are not modeled.

Compare RFIX and VOO against another ticker

Open a multi-ticker workspace without changing this focused pair page.

Basic: 2 symbols·Explorer: 3 symbols·Pro and Premium: 5 symbols·Your limit: 2

AIQ Factor Divergence

Where the two separate, on the four dimensions behind the AIQ Score. Bars read outward from a shared zero: further from the centre is a wider gap.

RFIX advantage
0
VOO advantage
  • Risk Resilience27 vs 87
    VOO +60
  • Quality43 vs 77
    VOO +34
  • Value36 vs 41
    VOO +5
  • Momentum62 vs 64
    Even

4 of 4 evidence groups favor VOO. VOO’s edge is concentrated in risk resilience and quality.

What changed since the last close

Latest scored session 2026-10-20, compared against the prior scored session 2026-10-19.

RFIX+5 AIQ

Largest factor move: Momentum +19

New signals

  • MACD Bullish Crossover — bullish, momentum, short horizon
VOO+4 AIQ

Largest factor move: Momentum +17

New signals

  • Uptrend Structure Active — bullish, trend, long horizon

VOO's lead narrowed by 1 AIQ point in the latest session.

Deeper signal detail for each name lives on its own signals page — RFIX and VOO both carry a full feed there.

Fund facts, side by side

Two funds tracking overlapping universes are separated by cost and risk far more than by holdings. Those lead here.

MeasureRFIXVOOWhy it matters
Expense ratio0.5%0.03%Lower is better — it compounds against you every year you hold.
Holdings9508More holdings means broader diversification, not better returns.
Average volume380,5937,814,237Liquidity — matters most if you trade size.
Annualized volatility27.7%12.8%Lower is a steadier ride for the same exposure.
Max drawdown (1Y)-23.3%-9.2%The worst peak-to-trough loss over the past year.
Sharpe ratio-0.660.91Return per unit of risk. Higher is better.
Beta0.101.00Sensitivity to the broad market. Neither direction is better — it depends on the role in your portfolio.

Where the exposure actually sits

Sector exposure for each fund, ordered by the size of the difference.

Government94.7% vs 0.0%
Cash & Others5.3% vs 0.0%
Technology0.0% vs 38.7%
Financial Services0.0% vs 12.0%
Communication Services0.0% vs 9.5%
Consumer Cyclical0.0% vs 9.3%
Healthcare0.0% vs 9.3%
Industrials0.0% vs 7.8%
RFIXVOO

How much of the same holdings they own

RFIX and VOO share 0% of their weighted exposure across 0 common holdings.

7 holdings are unique to RFIX, and 505 holdings are unique to VOO. Owning both is genuinely additive — most of the capital sits in different securities.

What RFIX adds that VOO doesn’t

HoldingRFIXVOO
B 12/31/26 Govt37.62%Not held
B 10/15/26 Govt24.5%Not held
SWAPTION R 3.00%/SOFR 3/15/32-10Y MS11.27%Not held
B 12/3/26 Govt6.45%Not held
SWAPTION R 3.00%/SOFR 3/15/32-10Y BOA5.77%Not held
SWAPTION R 3.00%/SOFR 3/15/32-10Y GS5.6%Not held

What VOO adds that RFIX doesn’t

HoldingVOORFIX
NVDANVIDIA Corp7.55%Not held
AAPLApple Inc7.05%Not held
MSFTMicrosoft Corp5.36%Not held
AMZNAmazon.com Inc4.13%Not held
GOOGLAlphabet Inc3.24%Not held
AVGOBroadcom Inc2.86%Not held

Each list is a fund’s largest positions by weight that the other fund does not hold, or holds at less than half the weight.

AIQ Agreement Matrix

4 of 4 covered evidence groups favor VOO. A wide gap backed by one group is a weaker case than a narrow gap backed by five.

Evidence groupFavorsReading
AIQ ScoreVOO43 vs 64
FundamentalsNot coveredNot covered
ValuationVOOValue 36 vs 41
TechnicalsVOOPrice vs 50-day 0.7% vs 0.6%; vs 200-day -4.2% vs 5.9%
Risk ResilienceVOORisk Resilience 27 vs 87
Analyst expectationsNot coveredNot covered

✓ agrees with the overall verdict · ✕ points the other way. Groups marked “not covered” lack data on one or both of RFIX and VOO and are excluded from the count.

AIQ Decision Stability

Competitive

The two are close enough that your objective, not the score, should decide.

  • The AIQ gap is wide at 21 points. (supports the conclusion holding)
  • 4 of 4 covered evidence groups point the same way. (supports the conclusion holding)
  • The leader's advantage has been narrowing. (argues the conclusion is provisional)
  • The leader is throwing conflicting signals. (argues the conclusion is provisional)

Stability combines the score gap, how broadly the evidence agrees, how steady the lead has been across daily snapshots, the current signal state on both names, and analyst dispersion on VOO.

How the comparison changed

45 daily snapshots · Sep 6 – Oct 20

VOO lead: Weakening — the AIQ differential moved from 26 to 21 points over 30 sessions.

Sep 6RFIX leads above the line · VOO leads belowOct 20
Today
VOO +21
43 vs 64
7 sessions ago
VOO +26
37 vs 63
30 sessions ago
VOO +26
38 vs 64
90 sessions ago
Not covered

The lead has not changed hands in this window.

AIQ Signal Divergence

Only the signals that bear on the head-to-head. A conflicted name is carrying bullish and bearish rules at the same time — the technical evidence is not pointing one way.

RFIXConflicted

1 bullish / 1 bearish / 1 neutral, conflicted

Only RFIX

  • Bollinger Band Squeeze — neutral, volatility, short horizon
  • Death Cross Active — bearish, trend, long horizon (6.20%)
  • MACD Bullish Crossover — bullish, momentum, short horizon
VOOConflicted

4 bullish / 1 bearish / 1 neutral, conflicted

Only VOO

  • Golden Cross Active — bullish, trend, long horizon (5.84%)
  • ATR Contraction - Coiling — neutral, volatility, short horizon (0.93%)
  • EMA Ribbon Expansion Bullish — bullish, trend, medium horizon
  • 52-Week High Proximity — bullish, risk, long horizon (1.2%)
  • Uptrend Structure Active — bullish, trend, long horizon
  • MACD Bearish Crossover — bearish, momentum, short horizon

VOO leads the comparison while carrying a conflicted signal state, which is one reason the stability rating is not higher.

Price vs model alignment

Whether the latest session's price move confirms what the model did over the same session, or contradicts it.

RFIXDivergence

Price is down while the AIQ Score moved up 5 points over the same session — price and model disagree (price -1.04%, AIQ +5 points).

VOOConfirmed strength

Price and the AIQ Score both moved up over the latest session (price +0.55%, AIQ +4 points).

What would flip this result

A state, not a forecast. These are the specific, observable changes that would reverse the verdict — not a price prediction.

  1. 1RFIX closes the Risk Resilience gap — currently 60 points behind, the largest single contributor to VOO's edge.
  2. 2RFIX's Death Cross Active resolves — a bearish trend rule currently active against it.
  3. 3VOO's conflicting signal state resolves bearish — it currently carries 4 bullish and 1 bearish rules at once.
  4. 4The narrowing continues — the lead has already given back 5 points over 30 sessions, and a further 21-point move would eliminate VOO's advantage entirely.

The full evidence

Every number behind the verdict. The leader is called above each group so you are not left to solve it from the table.

Performance

VOO leads 5 of 6 windows
MetricRFIXVOO
1 week (5 sessions)5.2%-1.2%
1 month (20 sessions)-1.7%-0.8%
3 months (63 sessions)-2.4%2.9%
6 months (126 sessions)-5.7%9.2%
Year to date0.5%12.7%
1 year (252 sessions)-18%16.4%

Technicals

VOO has the stronger structure
MetricRFIXVOO
RSI (14)57.956.2
ADX (14)12.212.3
Price vs 50-day0.7%0.6%
Price vs 200-day-4.2%5.9%
Volatility (1M, annualized)28%9.4%

Risk

VOO is the more resilient
MetricRFIXVOO
Beta0.11
Sharpe ratio-0.660.91
Sortino ratio-1.111.38
Max drawdown-23.3%-9.2%
Current drawdown-19.1%-1.3%
Annualized volatility27.7%12.8%
Value at risk (95%)-2.6%-1.4%

Straight answers

Short answers to the questions fund investors ask about this pair, from the figures above.

What is the difference between RFIX and VOO?

RFIX puts 95% of its assets in Government, while VOO spreads across 11 sectors with none above 39%.

How much do RFIX and VOO overlap?

RFIX and VOO share 0% of their weighted exposure across 0 common holdings. 7 holdings are unique to RFIX, and 505 holdings are unique to VOO. Owning both is genuinely additive — most of the capital sits in different securities.

Which ETF is more diversified, RFIX or VOO?

VOO holds more positions: 508 versus 9 for RFIX.

Which has the lower expense ratio?

VOO has the lower expense ratio, 0.03% a year against 0.5% for RFIX.

Which ETF has the higher distribution yield?

RFIX, with a trailing 12-month distribution yield of 4.47% against 1.05% for VOO.

Which ETF has been more volatile?

RFIX has been more volatile over the past year, at 27.7% annualized against 12.8% for VOO.

Which ETF has had the smaller drawdown?

VOO fell less from peak to trough over the past year: -9.2% against -23.3% for RFIX.

Compare RFIX and VOO with others

Continue your research

This page answers which of the two. These answer the questions on either side of it.

How this comparison is scored

The Algovestiq AIQ Score composites four factors — Quality, Value, Momentum and Risk, each carrying a fixed weight. Sentiment is reported separately as SentimentPulse and is not folded into the composite. Scores refresh every trading day, and this page regenerates from the latest snapshot rather than being written once.

The verdict names a leader, states how broadly six independent evidence groups agree, and rates how durable that conclusion is given the score gap, its recent trajectory and the current signal state on both names.

How to use side-by-side comparison →

This comparison is informational and educational, not investment advice. AIQ scores update daily; re-check after earnings, guidance or macro data that materially changes either name’s factor profile.