If your holdings are scattered across Alpaca, Interactive Brokers, Schwab, and Robinhood, no single broker app shows your full picture, and switching brokers means starting your tracking from scratch. This guide shows how to consolidate all four into one dashboard and keep your position data portable so you never get locked into one platform.
What is broker lock-in and why does it matter for investors?
Broker lock-in is when your position history, cost basis, and performance data live only inside one broker's app, making it painful to switch or diversify across platforms. It's the investing version of the travel industry's OTA-style lock-in, where leaving the platform means losing your data and workflow.
The problem gets worse the more brokers you use. A typical active retail investor in 2026 holds assets across 2 to 4 platforms: maybe Alpaca for automated strategies, Interactive Brokers for global markets, Schwab for a retirement account, and Robinhood for spare-change trades.
Each app only shows its own slice. That leaves you with real problems:
- No single view of total net worth or true asset allocation
- Duplicate exposure you can't see (owning AAPL in three accounts)
- No unified performance benchmark across all holdings
- Tax reporting spread across four different 1099 forms
Why do broker apps fail multi-broker investors?
Broker apps fail multi-broker investors because they are designed to keep you inside one ecosystem, not to give you a neutral overview. Each app optimizes for trading on that platform, not for seeing your whole financial life.
The design incentive is obvious. Robinhood wants you trading on Robinhood, so its dashboard will never show your Schwab positions. This is the same reason a portfolio tracker beats a spreadsheet for most investors: the tool should be neutral and consolidate everything.
The specific gaps in broker-native tracking
Broker apps consistently miss cross-account context that matters for decisions. Here's what breaks:
- Concentration risk hides across accounts. If NVDA is 8% of each account, it's your single largest position overall but no app flags it.
- Cash drag stays invisible. Idle cash sitting in your IBKR account isn't netted against your Schwab buying power.
- Crypto and stocks live in separate silos entirely, which is why tracking crypto and stocks together in one portfolio requires a neutral layer.
How do you connect Alpaca, IBKR, Schwab and Robinhood in one place?
You connect all four by using a portfolio tracker that supports both direct API connections and aggregation feeds, then linking each broker once. A portfolio tracker is a neutral tool that pulls your positions from multiple brokers into a single consolidated view.
The connection method differs by broker:
| Broker | Connection Method | What Syncs | Refresh |
|---|---|---|---|
| Alpaca | Direct API key | Positions, orders, cash | Real-time |
| Interactive Brokers | Flex Query / API | Positions, cost basis, trades | Intraday |
| Schwab | Aggregation feed | Positions, balances | Daily |
| Robinhood | Aggregation feed | Positions, balances | Daily |
Alpaca is the cleanest to connect because it was built API-first. If you're setting that up, the walkthrough on syncing your Alpaca account with PortfolioTrackr covers key generation step by step.
Understanding what actually syncs versus what you fix manually
Live positions and balances sync automatically, but historical cost basis sometimes needs a manual correction after the first import. This is normal and one-time.
- Alpaca passes cost basis cleanly, though transferred-in shares can show a zero basis, detailed in the guide on what actually syncs when you connect Alpaca.
- Interactive Brokers Flex Queries carry full trade history, so basis is usually accurate.
- Aggregation-based feeds for Schwab and Robinhood may need you to enter original purchase prices for older lots.
How does a portfolio tracker prevent broker lock-in?
A portfolio tracker prevents lock-in by storing your position and transaction data independently of any single broker, so switching brokers doesn't erase your history. Your track record lives in the tracker, not the broker.
This matters more than people realize. If you decide to leave Robinhood and move to Schwab in 2026, your Robinhood app takes your performance history with it the day you close the account. A tracker keeps that record.
PortfolioTrackr handles this by keeping a broker-agnostic ledger of every position and trade. The three practical benefits:
- Portable history. Close a broker account and your returns, benchmarks, and lot data stay intact.
- Free broker choice. Pick the best broker for each job without fragmenting your view.
- Data export. You can export your consolidated data to CSV any time, so you're never trapped in the tracker either.
How do you spot duplicate exposure across four brokers?
You spot duplicate exposure by consolidating all accounts into one holdings table that sums identical tickers across brokers. This is where multi-broker tracking earns its keep.
Consider a realistic case. You own AAPL in three places:
- Schwab: 40 shares in a Roth IRA
- Robinhood: 15 shares from casual buys
- Interactive Brokers: 25 shares from a covered-call setup
No single app shows you own 80 shares of AAPL worth a meaningful slice of your portfolio. A consolidated tracker sums them into one line, revealing concentration you'd otherwise miss. This is the same discipline behind good position sizing around high-risk catalysts, where knowing your true total exposure is the whole game.
How do you benchmark a multi-broker portfolio correctly?
You benchmark a multi-broker portfolio by measuring the combined return of all accounts against a single index like the S&P 500, not each broker separately. Per-broker returns are meaningless because they ignore your overall allocation.
The math only works when everything is in one place. If Alpaca returned 22% but represents 5% of your capital, and Schwab returned 6% on the other 60%, your blended return is nowhere near 22%.
A consolidated view lets you answer the only question that matters: is your total portfolio beating the market? The framework in our guide on whether your portfolio is actually beating the S&P 500 assumes you already have this single blended number.
What should you look for in a multi-broker tracker?
Look for broad broker coverage, both API and aggregation support, portable data export, and a neutral business model that doesn't route your trades. These four traits separate genuine trackers from broker upsells.
A practical checklist before you commit:
- Coverage: Does it support all your brokers, including API-first ones like Alpaca?
- Cost basis handling: Can you correct imported lots manually?
- Crypto plus equities: One view for BTC-USD and SPY, not two apps?
- Export freedom: CSV export so you're never locked into the tracker?
For a side-by-side of the main options in this space, the real-data comparison of six portfolio trackers breaks down coverage and pricing. If you're brand new to linking accounts, start with the basics in connecting your brokerage account to a portfolio tracker.
The bottom line
Using multiple brokers is smart, but letting each one silo your data is not. The fix is a neutral tracker that consolidates Alpaca, Interactive Brokers, Schwab, and Robinhood into one dashboard and keeps your history portable.
Connect each broker once, verify your cost basis, and from then on you get a single view of total exposure, blended returns, and true asset allocation. Pick brokers for their strengths, not because you're trapped by their apps.
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Frequently asked questions
Can I track Alpaca, Schwab and Robinhood in one app?
Yes. A portfolio tracker consolidates all three into one dashboard using direct API connections for Alpaca and aggregation feeds for Schwab and Robinhood. PortfolioTrackr links each broker once, then shows combined positions, total exposure, and a single blended return across every account.
What is broker lock-in and how do I avoid it?
Broker lock-in is when your position history and cost basis live only inside one broker's app, making switching painful. Avoid it by using a neutral portfolio tracker that stores your data independently, so closing a broker account never erases your performance record or transaction history.
Does connecting Interactive Brokers to a tracker sync cost basis?
Yes. Interactive Brokers Flex Queries carry full trade history, so cost basis usually imports accurately. Positions and balances refresh intraday. Transferred-in shares occasionally need a one-time manual basis correction, but native IBKR trades sync cleanly with their original purchase prices intact.
How do I see duplicate stock holdings across multiple brokers?
Use a tracker that sums identical tickers across all accounts into one holdings line. If you own AAPL in Schwab, Robinhood, and IBKR, PortfolioTrackr combines them into a single position, revealing total share count and concentration risk that no individual broker app shows.
Is it safe to connect my brokerage accounts to a portfolio tracker?
Yes, when the tracker uses read-only connections. API keys for Alpaca and aggregation feeds for Schwab and Robinhood pull position and balance data without trade permissions. This means the tracker can view your holdings but cannot place orders or move money from your accounts.