TLAFX vs. VIIIX

Last updated Jun 4, 2026

TLAFX (Transamerica Large Core Fund) and VIIIX (Vanguard Institutional Index Fund Institutional Plus Shares) are both Large Cap Blend Equities funds. Over the past 10 years, TLAFX returned 14.66%/yr vs 15.74%/yr for VIIIX. With a 0.98 correlation, they move nearly in lockstep. TLAFX charges 0.76%/yr vs 0.02%/yr for VIIIX.

Performance

TLAFX vs. VIIIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Transamerica Large Core Fund (TLAFX) and Vanguard Institutional Index Fund Institutional Plus Shares (VIIIX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, TLAFX achieves a 10.98% return, which is significantly lower than VIIIX's 11.70% return. Over the past 10 years, TLAFX has underperformed VIIIX with an annualized return of 14.66%, while VIIIX has yielded a comparatively higher 15.74% annualized return.

TLAFX

• 1D: 0.08%
• 1M: 6.31%
• YTD: 10.98%
• 6M: 11.55%
• 1Y: 27.76%
• 3Y*: 21.54%
• 5Y*: 13.97%
• 10Y*: 14.66%

VIIIX

• 1D: 0.13%
• 1M: 5.80%
• YTD: 11.70%
• 6M: 11.74%
• 1Y: 28.99%
• 3Y*: 23.17%
• 5Y*: 14.42%
• 10Y*: 15.74%

*Multi-year figures are annualized to reflect compound growth (CAGR)

TLAFX vs. VIIIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
TLAFX Transamerica Large Core Fund	10.98%	17.56%	22.59%	25.87%	-16.76%	29.74%	15.30%	26.68%	-7.19%	22.57%
VIIIX Vanguard Institutional Index Fund Institutional Plus Shares	11.70%	17.87%	26.29%	25.79%	-18.14%	28.69%	18.41%	31.48%	-4.41%	21.82%

Correlation

The correlation between TLAFX and VIIIX is 0.98 - these two move nearly in lockstep. At this level, holding both provides almost no diversification benefit. If you already own one, adding the other does little to reduce portfolio risk.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.98
Correlation (3Y) Calculated over the trailing 3-year period	0.98
Correlation (5Y) Calculated over the trailing 5-year period	0.98
Correlation (10Y) Calculated over the trailing 10-year period	0.98
Correlation (All Time) Calculated using the full available price history since Aug 6, 2012	0.98

The correlation between TLAFX and VIIIX has been stable across timeframes, ranging from 0.98 to 0.98 - a consistent structural relationship.

Return for Risk

TLAFX vs. VIIIX — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

TLAFX

TLAFX Risk / Return Rank: 69
TLAFX Sharpe Ratio Rank: 70
TLAFX Sortino Ratio Rank: 65
TLAFX Omega Ratio Rank: 62
TLAFX Calmar Ratio Rank: 70
TLAFX Martin Ratio Rank: 79

VIIIX

VIIIX Risk / Return Rank: 73
VIIIX Sharpe Ratio Rank: 76
VIIIX Sortino Ratio Rank: 67
VIIIX Omega Ratio Rank: 67
VIIIX Calmar Ratio Rank: 74
VIIIX Martin Ratio Rank: 83

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.

TLAFX vs. VIIIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Transamerica Large Core Fund (TLAFX) and Vanguard Institutional Index Fund Institutional Plus Shares (VIIIX). 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.

	TLAFX	VIIIX	Difference
Sharpe ratio: Return per unit of total volatility	2.46	2.52	-0.06
Sortino ratio: Return per unit of downside risk	3.38	3.42	-0.04
Omega ratio: Gain probability vs. loss probability	1.44	1.46	-0.02
Calmar ratio: Return relative to maximum drawdown	3.23	3.36	-0.12
Martin ratio: Return relative to average drawdown	14.87	15.69	-0.83
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

TLAFX vs. VIIIX - Sharpe Ratio Comparison

The current TLAFX Sharpe Ratio is 2.46, which is comparable to the VIIIX Sharpe Ratio of 2.52. The chart below compares the historical Sharpe Ratios of TLAFX and VIIIX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	TLAFX	VIIIX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.46	2.52	-0.06
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.72	0.86	-0.14
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.76	0.87	-0.12
Sharpe Ratio (All Time) Calculated using the full available price history	0.77	0.50	+0.27

Drawdowns

TLAFX vs. VIIIX - Drawdown Comparison

The maximum TLAFX drawdown since its inception was -33.94%, smaller than the maximum VIIIX drawdown of -55.18%. Use the drawdown chart below to compare losses from any high point for TLAFX and VIIIX.

Drawdown Indicators

	TLAFX	VIIIX	Difference
Max Drawdown Largest peak-to-trough decline	-33.94%	-55.18%	+21.24%
Max Drawdown (1Y) Largest decline over 1 year	-8.91%	-8.90%	-0.01%
Max Drawdown (3Y) Largest decline over 3 years	-18.84%	-18.75%	-0.09%
Max Drawdown (5Y) Largest decline over 5 years	-30.72%	-24.50%	-6.22%
Max Drawdown (10Y) Largest decline over 10 years	-33.94%	-33.79%	-0.15%
Current Drawdown Current decline from peak	0.00%	0.00%	0.00%
Average Drawdown Average peak-to-trough decline	-5.43%	-10.02%	+4.59%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.93%	1.90%	+0.03%

Volatility

TLAFX vs. VIIIX - Volatility Comparison

Transamerica Large Core Fund (TLAFX) and Vanguard Institutional Index Fund Institutional Plus Shares (VIIIX) have volatilities of 2.83% and 2.83%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	TLAFX	VIIIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	2.83%	2.83%	0.00%
Volatility (6M) Calculated over the trailing 6-month period	8.95%	8.97%	-0.02%
Volatility (1Y) Calculated over the trailing 1-year period	11.71%	11.86%	-0.15%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	19.50%	16.89%	+2.61%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	19.47%	18.06%	+1.41%

TLAFX vs. VIIIX - Expense Ratio Comparison

TLAFX has a 0.76% expense ratio, which is higher than VIIIX's 0.02% expense ratio.

Dividends

TLAFX vs. VIIIX - Dividend Comparison

TLAFX's dividend yield for the trailing twelve months is around 14.24%, more than VIIIX's 2.41% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
TLAFX Transamerica Large Core Fund	14.24%	15.89%	23.39%	7.88%	6.40%	16.53%	9.17%	1.44%	22.85%	4.89%	0.00%	0.00%
VIIIX Vanguard Institutional Index Fund Institutional Plus Shares	2.41%	2.11%	3.66%	2.66%	3.39%	4.79%	3.07%	2.86%	2.45%	1.84%	2.38%	2.47%

Frequently Asked Questions

Can I hold both TLAFX and VIIIX in my portfolio?

With a correlation of 0.98, TLAFX and VIIIX move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.

Which is riskier, TLAFX or VIIIX?

VIIIX has higher volatility (2.83%) compared to TLAFX (2.83%). In terms of maximum drawdown, TLAFX dropped -33.94% vs VIIIX's -55.18%.

Which has better risk-adjusted returns?

VIIIX currently has the higher Sharpe Ratio (2.52 vs 2.46), 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.