Fidelity vs Schwab vs Vanguard: Which Broker Wins

Cash yield is the largest single cost spread in retail brokerage. It's also the one most investors never look at because the broker doesn't surface it in the trade ticket.

Here's the head-to-head on $100,000 of idle cash, sourced from each broker's published 7-day SEC yield as of early May 2026 and triangulated against the cluster reviews shipped over the last two weeks:

Broker default	Yield	Annual income on $100K	Spread vs Fed funds (3.64%)
Vanguard VMFXX	3.64%	$3,640	0 bps
Fidelity SPAXX	3.29%	$3,290	-35 bps
Schwab Bank Sweep	0.05%	$50	-359 bps

The Vanguard-vs-Schwab gap on $100K is $3,590 a year. Multiply by 73× to get the relative income ratio. Multiply by 30 years to get an opportunity cost over a working lifetime that exceeds the entire account's transaction-fee burden by an order of magnitude.

The number that matters isn't whether your broker offers a higher-yielding sweep alternative — all three do. It's what the default is, because defaults are what 80%+ of accounts actually sit in. Schwab will happily sell you SWVXX (Schwab Value Advantage Money Fund, currently around 3.28%) but you have to manually buy it, manually rebalance after deposits, and manually re-buy after every settled trade. Vanguard sweeps you into VMFXX automatically; Fidelity sweeps you into SPAXX automatically. The friction is the product.

This architecture is no accident at Schwab. Net interest revenue from client cash deposits — the spread between what Schwab earns reinvesting that cash and what it pays clients — is the single largest line on the income statement. Q1 2026 results: $6.5 billion in net revenue, $1.43 adjusted EPS (up 38% YoY), driven heavily by the cash sorting environment finally stabilising. There is currently an active class-action lawsuit alleging Schwab captured the spread for itself rather than passing it through. The Vanguard review goes deeper on this in its cash-yield section — the 73× multiple is an arithmetic fact, not opinion.

The action item is one line: if you have more than $25,000 sitting in Schwab's default sweep, move it to SWVXX, to a 3-month T-bill (3.68%, state-tax exempt), or to a top-tier HYSA before you read the next section of this article.

Twenty years ago this was a real fight. Today it's a 4-basis-point footnote.

Fidelity's FZROX (total US market) charges 0.00%. Schwab's SWTSX charges 0.03%. Vanguard's VTSAX charges 0.04%, or VTI at 0.03% for the ETF share class. On a $100,000 portfolio, the gap between Fidelity's zero and Vanguard's 0.04% is $40 a year.

Forty dollars will not determine your retirement outcome. Don't optimise here.

What does still vary is fund breadth and structure:

• Vanguard's mutual-fund lineup is the deepest — single-state munis, sector index funds, target-date funds at 0.08%, and the original index funds from 1976. The fund-shareholder ownership structure means the funds literally own the management company. Fee cuts compound automatically; nobody has to fight for them. The Vanguard review covers this in its structural-moat section — $600M in fee cuts shipped in the last 18 months alone.
• Fidelity has the four zero-expense-ratio funds (FZROX, FZILX, FZIPX, FNILX) plus the standard index lineup. The catch: zero-fee funds aren't transferable to other brokers (Fidelity-proprietary), so they're a soft lock-in if you ever want to leave.
• Schwab matches on price but is shallower in mutual funds — the Schwab lineup is heavily ETF-weighted (SCHB, SCHX, SCHF, SCHA) with tighter index tracking but fewer specialist sleeves.

For advisory services, the spread reopens:

• Vanguard Personal Advisor: 0.30% annually, $50K minimum → $900/year on $300K
• Schwab Intelligent Portfolios Premium: $30/month flat ($360/year) → cheapest above ~$120K
• Fidelity Go: 0.35% above $25K → $1,050/year on $300K

If you want a human advisor at all, Schwab's flat-fee model destroys the percentage-fee competition once you cross $200K in advised assets. That's a structural advantage that compounds — flat fees scale linearly while percentage fees scale with the portfolio.

All three: $0 commissions on stocks and ETFs. Pricing diverges sharply on options.

• Fidelity: $0.65 per contract, no platform fee
• Schwab: $0.65 per contract, no platform fee, free thinkorswim
• Vanguard: $1.00 per contract

For an active options trader executing 100 contracts per month, Vanguard costs $420/year more than Schwab or Fidelity. At 500 contracts a month — not unusual for a wheel-strategy income trader — that's $2,100/year in extra friction. Vanguard knows this. The pricing is a deliberate filter to keep options traders out, because Vanguard's internal research consistently shows that trading frequency correlates negatively with returns.

The deeper question isn't price — it's tooling. thinkorswim, inherited by Schwab from TD Ameritrade and now fully integrated, is the best retail trading platform available, full stop. 373 technical studies, ThinkScript for custom indicators, Options Hacker for strategy scanning, paper trading with live market data, and customisable workspace layouts that no competitor matches. If you trade options seriously, Schwab is the only real choice among these three — see the broader options-broker landscape in our Tastytrade review and the Public.com options-rebate model for cheaper-still alternatives if you can tolerate a thinner platform.

Fidelity's Active Trader Pro is solid — fast execution, integrated Argus/Ned Davis/Zacks research, and a desktop-quality workflow. It's a real platform, not a toy. But it doesn't have thinkorswim's depth on volatility analysis or strategy modelling.

Vanguard's platform is deliberately minimal. Web feels a generation behind, mobile is functional but bare-bones, charting is rudimentary. Vanguard treats this as a feature: a boring platform discourages the excessive trading that wrecks long-term returns. If you check your portfolio daily and feel the urge to act, Vanguard's friction may save you more money than any fee comparison.

Margin rates favour Schwab and Fidelity over Vanguard by roughly 50-100 bps depending on tier. None of the three competes with Interactive Brokers on margin pricing — if margin borrowing is a primary use case, none of these three is the right account.

The platform comparison only tells you part of what you'll touch every week. The other parts — research, customer service, fractional shares — matter more for accumulation accounts than the trading desk does.

Research access:

• Fidelity offers 20+ third-party providers (Argus, Ned Davis, Zacks, Recognia, McLean Capital, S&P Capital IQ, Thomson Reuters and more) included at no extra cost. This is the most comprehensive free research stack in retail brokerage.
• Schwab offers Schwab Equity Ratings (in-house), Morningstar, Argus, and Credit Suisse — solid but narrower than Fidelity's lineup.
• Vanguard offers two providers (Argus and Market Grader). The Vanguard review's verdict: limited, on purpose. Vanguard doesn't want you reading reports and trading on them; it wants you in three index funds for 30 years.

Customer service: Fidelity has won J.D. Power's Self-Directed Investor Satisfaction ranking five of the last seven years. Schwab's service quality dipped during the 2022-2024 TD Ameritrade integration but has fully recovered — call wait times are now back to pre-merger levels. Vanguard remains the weakest of the three by every published metric: longer wait times, less knowledgeable phone reps on advanced topics, and a customer-service architecture that treats high-touch service as a cost rather than a moat.

Fractional shares:

• Fidelity: $1 minimum on stocks and ETFs, full fractional functionality. Best in class.
• Schwab: Stock Slices on S&P 500 stocks only, $5 minimum. Workable but limited.
• Vanguard: Fractional shares only on Vanguard's own ETFs. No fractional individual stocks. Genuine miss in 2026.

For anyone starting with less than $10,000, Fidelity's combination of $1 fractional shares, zero-expense-ratio funds, and 3.29% sweep is structurally the easiest place to begin. Vanguard's $3,000 mutual fund minimums and lack of fractional individual stock trading create real friction at small account sizes — see the M1 Finance review for an alternative pie-based approach better suited to micro-accounts, or Webull for a free-options small-balance starter.

The reason these brokers behave so differently has nothing to do with marketing copy. It's ownership.

Vanguard is client-owned. The funds own the management company. There are no outside shareholders, no quarterly earnings calls, no activist investors lobbying for fee hikes. Fee cuts flow back to investors automatically because investors are the owners. This is why Vanguard has cut fees 90+ times since 1975 and shipped roughly $600M in additional cuts in the last 18 months. The mutual structure is the moat — see why Vanguard is structurally cheap for the full mechanism.

Schwab is publicly traded (NYSE: SCHW). Q1 2026 results: record $6.5B revenue (+16% YoY), $11.8T total client assets (+19% YoY), $1.43 adjusted EPS (+38%), $140B core net new assets in the quarter. The stock fell 7.6% the day after earnings on April 16 despite the beat — the market was unhappy with cash-sorting commentary, which translates directly into the sweep-yield gap above. Schwab's growth depends on capturing more spread, which means the 0.05% default isn't going up voluntarily. The shareholders won't let it.

Fidelity is privately held by the Johnson family. No public markets pressure, no quarterly earnings call, no activist forcing capital returns. This hybrid model — private ownership with profit motive — is why Fidelity can ship four zero-expense-ratio funds while Schwab can't. Abigail Johnson doesn't have to defend the cash-yield decision to a sell-side analyst, so Fidelity can pay a competitive 3.29% on SPAXX without it being a quarterly drag. The trade-off: Fidelity also doesn't face Vanguard's structural mandate to minimise costs, which is why VMFXX still beats SPAXX by 35 basis points.

The pattern: Vanguard's structure forces the lowest costs, Schwab's structure forces the highest spreads, and Fidelity sits in the middle by choice. The choice has held for 50 years. None of these three is going to change ownership model in your investing lifetime — which means the cost spread you see today is the cost spread you'll inherit at year 30.

Stop trying to pick "the best" broker. Pick the one whose structural design matches what you're going to do with the account. The cluster substance work makes this routing precise — each branch below cites the section of the relevant individual broker review where the supporting evidence lives.

Branch 1 — DIY index investor, 20+ year horizon, won't trade options or individual stocks → Vanguard.

• Why: VMFXX 3.64% default sweep means idle cash is never a tax. Mutual ownership compounds fee cuts forever. 0.08% target-date funds are best-in-class. Trading platform's deliberate friction is a feature, not a bug.
• Read: the Vanguard review's structural-moat section for the $11.6T AUM / 50M investor scale and the fee-cut mechanism.
• Trade-offs you accept: $1 options contracts (won't matter), no fractional individual stocks (won't matter), $100 account-closing fee (won't matter unless you switch), basic mobile app (a feature).

Branch 2 — Active trader or options-strategy income investor → Schwab.

• Why: thinkorswim has no peer in retail trading platforms. $0.65 options contracts. Best-in-class strategy modelling and paper trading. Margin pricing among the better tier of the big three.
• Read: the Schwab review's everything-broker breakdown for the post-TD Ameritrade integration depth.
• Compare against: Tastytrade for capped per-trade fees, Public.com for options-rebate revenue share, Webull for $0 commissions.
• Mandatory action on day one: move uninvested cash out of the default Bank Sweep. Buy SWVXX manually, or sweep to a 3-month T-bill ladder at 3.68%. Failing to do this costs $3,590/year per $100K idle. There is no scenario in which Schwab's default sweep is the right answer.

Branch 3 — Retirement saver wanting one account that does everything competently → Fidelity.

• Why: $1 fractional shares, zero-fee index funds, 3.29% SPAXX sweep, 20+ third-party research providers, J.D. Power #1 service. Most complete package across every dimension.
• Read: the Fidelity review's $18T scale section for the SPAXX-vs-Schwab-Sweep $3,240/year cash-drag math.
• Best for: 401(k) rollovers, IRA accumulation, multi-account households (taxable + IRA + HSA + 529 under one login), and anyone who values "sets and forgets" over absolute lowest cost.

Branch 4 — Starting with under $10,000 → Fidelity (primary) or M1 Finance (alternative).

• Fidelity's $1 fractional shares + zero-fee funds + 3.29% sweep is the cleanest small-account stack.
• M1 Finance is the alternative if you want pie-based portfolio automation, but watch the $3/month maintenance fee under $10K and the sub-1% default cash rate.
• Vanguard's $3,000 Admiral share minimums and fractional-stock gap make it the wrong choice under $10K.

Branch 5 — High-net-worth account ($1M+) wanting advisory help → Schwab Premium > Vanguard PAS > Fidelity Go.

• Schwab Intelligent Portfolios Premium at $30/month flat = 0.036% on a $1M portfolio. That destroys every percentage-fee competitor at scale.
• Vanguard Personal Advisor at 0.30% = $3,000/year on $1M. Fine, but Schwab's flat fee is 12× cheaper.
• Fidelity Go at 0.35% = $3,500/year on $1M. The most expensive of the three at scale.

Branch 6 — Already have an established account at one of the three → don't switch. The transfer paperwork, partial-share fragmentation, and tax-lot reset usually exceed any fee saving you'd capture. The single highest-leverage move is fix the cash sweep first — that's reversible in a single trade, captures most of the available value, and doesn't require touching the rest of the portfolio. Re-evaluate the broker question only if you're consolidating multiple accounts or your needs have fundamentally changed (e.g., started actively trading options).