jjmaxwell4

5 ms·

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Doorstep: An MCP server that lets Claude send someone in SF to run your errands(trydoorstep.app)
2 points by jjmaxwell4 6mo ago|0 comments
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Show HN: Agent Readiness Score – A real AI agent to test your website(trypillar.com)
5 points by jjmaxwell4 7mo ago|0 comments
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Lessons from Building (and Closing) Double Finance (YC W24)(jjmaxwell4.com)
4 points by jjmaxwell4 9mo ago|1 comments
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by jjmaxwell4 10mo ago
The url got messed up somehow. Trying to delete but can't
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by jjmaxwell4 10mo ago
I know that Cursor and the related IDEs touch millions of secrets per day. Issues like this are going to continue to be pretty common.
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Google Antigravity exfiltrates data via indirect prompt injection attack(promptarmor.com)
768 points by jjmaxwell4 10mo ago|215 comments
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$93B paid in Expense Ratios per year(double.finance)
2 points by jjmaxwell4 2y ago|0 comments
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Default/Override: An Elegant Schema for User Settings(double.finance)
3 points by jjmaxwell4 2y ago|1 comments
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by jjmaxwell4 2y ago
The idea of a universal AI assistant across the desktop is cool. Like the emphasis on local processing and provider choice. I have tried out V1 and while it's a bit barebones, the planned features like 'Autocontext' and &#x27
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Show HN: ETF Comparison – See Correlation, Overlap, and Holdings
14 points by jjmaxwell4 2y ago|4 comments
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by jjmaxwell4 2y ago
Yes we've thought about them a fair bit. We believe that in most ETFs right now the transaction costs are largely factored into either the expense ratio or the ETF bid-ask spread, exactly due to the redemption mechanism you discussed.
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by jjmaxwell4 2y ago
You are correct the in-kind creation/redemption pushes any taxable gains/losses to the trading of the ETF by the holder, not the ETF itself. But there are some benefits to doing what you refer to as a "custom one-off fund&quo
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by jjmaxwell4 2y ago
Other than fees, we are also quite a bit more customizable than most other options you mentioned. We let you do things like rebalance between positions and pick your optimization type, and backtest a screened portfolio. More customizable th
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by jjmaxwell4 2y ago
No relation but I have shared some emails with the founder and we are both in SF I believe.
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by jjmaxwell4 2y ago
We choose to lead with the expense ratio savings in this marketing push, but I really think the platform allows for the best investment account out there with tax loss harvesting built in, dollar cost averaging between positions and stock o
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by jjmaxwell4 2y ago
I'd argue the specifics are quite a bit different than Yotta/Synapse. We do not hold any funds ourselves. You connect your bank and ach/wire money to an Apex bank account. You can verify your holdings via apex anytime (see:
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by jjmaxwell4 2y ago
We don't currently offer Roth IRA or 401K accounts, but once we do then yes it would be possible to transfer the account without changing the tax-advantaged status.
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by jjmaxwell4 2y ago
We optimize (look at the account) daily but only trade if the portfolio meaningfully improves. We take into account tax rates while optimizing your account. You can also chose to put your strategy in Buy & Hold which will never sell any
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by jjmaxwell4 2y ago
If Double goes out of business, your assets are safe and held in your name at Apex Clearing. They have processes in place for these scenarios to help you access and transfer those assets. SIPC protection covers against a brokerage firm fail
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by jjmaxwell4 2y ago
Yes we allow this right now very easily, although we don't call it "soft shorting". You can remove or de-weight specific stocks or sectors quite easily.
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by jjmaxwell4 2y ago
Fair point! We also let you build a pretty customized indexes, and migrate between positions easily over time. For example, you can diversify away from your employer or your employers sector, or over or under weight specific stocks you&#x27
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by jjmaxwell4 2y ago
Very fair! Bogle is the true OG and our inspiration
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by jjmaxwell4 2y ago
Interesting - how can we make this more believable? Link to their LinkedIns?
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by jjmaxwell4 2y ago
Thanks - worked hard on the backtester despite it not being front and center product wise. We currently have 50+ strategies. About 30 of these replicate popular ETFs. MTUM is one of them ( https://double.finance/p/explor
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by jjmaxwell4 2y ago
Appreciate that and its good feedback.
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by jjmaxwell4 2y ago
Complementing a Direct Index US 500 portfolio with Small Cap or International ETFs is very possible. You can exposure yourself to US Small Cap and International through ETFs - there is the related ETF expense ratio in that case.
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by jjmaxwell4 2y ago
Appreciate the kind words and feedback.
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by jjmaxwell4 2y ago
The account is opened in your name and your securities are held in your name at Apex Clearing. Apex has more than 19M brokerage accounts opened. We are Registered Investment Advisor (RIA) regulated by the SEC.
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by jjmaxwell4 2y ago
We can ACAT in existing positions to an Index yes, which would be "seeding" an index with shares you already own. As for taxes, we provide a yearly summary for realized gains and losses that most tax professional can plug into the
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by jjmaxwell4 2y ago
Great question. The bid-ask spreads of the ETF itself already take into account the bid-ask spreads of the underlying securities, since there exists an arbitrage opportunity via the ETF redemption mechanism. I found this PDF from State Stre

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