VDE Crushed TAN: Vanguard Oil Fund Returns 46.8% vs Solar's 6.7%

The Vanguard Energy ETF (NYSEMKT:VDE) returned 46.8% over the trailing year as of September 18, 2026 — nearly seven times the 6.7% posted by the Invesco Solar ETF (NYSEMKT:TAN) over the same period.

The gap reflects a stark divergence in what the two funds own. VDE tracks a broad basket of traditional U.S. fossil fuel producers. TAN makes a concentrated, high-conviction bet on the global solar power industry. According to the fund comparison, energy investing in 2026 is shaped by two forces: the U.S. war with Iran has pushed oil prices sharply higher, while the artificial intelligence boom has driven enormous demand for electricity.

The cost gap compounds

Cost is a primary differentiator for long-term holders. Vanguard charges a 0.09% expense ratio on VDE. Invesco charges 0.7% on TAN — nearly eight times as much. The premium reflects the higher costs often associated with managing specialized, niche thematic portfolios.

Size follows the same pattern. VDE holds $13.2 billion in assets under management against TAN's $0.9 billion. VDE shares traded at $180.31 on September 18, 2026; TAN at $45.66.

Risk metrics favor the oil fund — dramatically

The volatility differential is severe. TAN carries a beta of 1.41, meaning it moves roughly 41% more than the S&P 500, calculated from monthly returns over the available fund history of up to five years. VDE's beta sits at 0.50 — half the market's movement.

Drawdowns tell the same story. Over five years, TAN suffered a maximum drawdown of 74.0%. VDE's worst peak-to-trough decline was 26.6%.

The five-year wealth outcome is the most striking figure. A $1,000 investment in VDE, with dividends reinvested, grew to $3,085. The same $1,000 in TAN fell to $539 — a loss of nearly half the original stake.

VDE also pays investors to wait. The fund yields 2.3% on a trailing-12-month distribution basis. TAN pays no dividend.

What's inside each portfolio

VDE holds 112 stocks and tracks a broad U.S. energy index, with 100% sector concentration in energy. Its top positions are ExxonMobil Holdings at 21.90%, Chevron at 14.08%, and ConocoPhillips at 6.01%. The fund, launched in 2004, spans integrated oil majors and exploration companies.

TAN runs a much tighter book: 35 holdings focused on the solar industry, spread across energy (56%), utilities (31%), and industrials (5%). Its largest positions are First Solar at 9.81%, Nextpower at 8.84%, and Enlight Renewable Energy at 8.19%. Launched in 2008, the fund's concentration leaves it sensitive to specific regulatory and technological shifts — a structural vulnerability the diversified Vanguard fund does not share.

Two bets on the same theme

Both funds give investors exposure to the same underlying forces reshaping the energy sector in 2026 — geopolitical oil supply shocks and surging electricity demand — but through opposite instruments. VDE monetizes the present: cheap, diversified ownership of the incumbent producers capturing today's high oil prices. TAN bets on a transition: expensive, concentrated exposure to solar technology companies whose five-year record includes a 74% drawdown.

For investors weighing the two, the comparison reduces to a trade-off between cost, diversification, and proven returns on one side, and thematic conviction with far higher volatility on the other. If oil prices stay elevated and AI-driven power demand keeps straining grids, VDE's incumbents remain the direct beneficiaries — while TAN's case depends on a solar recovery that its trailing numbers have yet to deliver.