Posted by sam_palus 11 hours ago
Launch HN: Palus Finance (YC W26): Better yields on idle cash for startups, SMBs
We were funded by YC for a consumer-focused product for higher-yield savings. But when we joined YC and got our funding, we realized we needed the product for our own startup’s cash reserves, and other startups in the batch started telling us they wanted this too.
We realized that traditional startup treasury products do much the same thing: open a brokerage account, sweep your cash into a money market fund (MMF), and charge a management fee. No strategy involved. (There is actually one widely-advertised treasury product that differentiates on yield, but instead of an MMF it uses a mutual fund where your principal is at considerable risk – it had a 9% loss in 2022 that took years to recover.)
I come from a finance background, so this norm felt weird to me. The typical startup cashflow pattern is a large infusion from a raise covering 18–24 months of burn, drawn down gradually. That's a lot of capital sitting idle for a long time, where even a modest yield improvement compounds into real money.
MMFs are the lowest rung of what's available in fixed income. Yes, they’re very safe and liquid, but when you leave your whole treasury in one, you’re giving up yield to get same-day liquidity on cash you won’t touch for six months or more. Big companies have treasury teams that actively manage their holdings and invest in a range of safe assets to maximize yield. But those sophisticated bond portfolios were just never made accessible to startups. That’s what we’re building.
Our bond portfolio holds short-duration floating-rate agency mortgage-backed securities (MBS), which are an ideal, safe, high-yielding asset for long-term startup cash reserves under most circumstances.[1]
The bond portfolio is managed by Regan Capital, which runs MBSF, the largest floating-rate agency MBS ETF in the country. Right now we're using MBSF to generate yields for customers (you can see its historical returns, including dividends, here: https://totalrealreturns.com/n/USDOLLAR,MBSF). We're working with Regan to set up a dedicated account with the same strategy, which will let us reduce fees and give each startup direct ownership of the underlying securities. All assets are held with an SEC-licensed custodian.
Based on historical returns, we target 4.5–5% returns vs. roughly 3.5% from most money market funds.[2] Liquidity is typically available in 1-2 business days. We will charge a flat 0.25% annual fee on AUM, compared to the 0.15–0.60%, depending on balance, charged by other treasury providers.
We think that startup banking products themselves (Brex, Mercury, etc.) are genuinely good at what they do: payments, payroll, card management. The problem is the treasury product bundled with them, not the bank. So rather than building another neobank, we built Palus to connect to your existing bank account via Plaid. Our goal was to create the simplest possible UX for this product: two buttons and a giant number that goes up.
See here: https://www.youtube.com/watch?v=8Q_gwSqtnxM
We are live with early customers from within YC, and accepting new customers on a rolling basis; you can sign up at https://palus.finance/.
We'd love feedback from founders who've thought about idle cash management or people with a background in fixed-income and structured products. Happy to go deep in the comments.
[1] Agency MBS are pools of residential mortgages guaranteed by federal government agencies (Ginnie Mae, Fannie Mae, and Freddie Mac). It's a $9T market with the same government backing and AAA/AA+ rating as the Treasuries in a money market fund. No investor has ever lost money in agency MBS due to borrower default.
It's worth acknowledging that many people associate “mortgage-backed securities” with the 2008 financial crisis. But the assets that blew up in 2008 were private-label MBS, bundles of risky subprime mortgages without federal guarantees. Agency MBS holders suffered no credit losses during the crisis, and post-2008 underwriting standards became even stricter. If anything, 2008 was evidence for the safety of agency MBS, not against it.
The agency guarantee eliminates credit risk. Our short-duration, floating-rate strategy addresses the other main risk: price risk. Fixed-rate bonds lose value when rates rise, but floating-rate bonds reset their coupon based on the SOFR benchmark, protecting against interest rate movements.
[2] This comes from the historical spread between MMFs and floating-rate agency MBS; MMFs typically pay very close to SOFR, while the MBS pay SOFR + 1 to 1.5%. This means that if the Federal Reserve changes interest rates and SOFR moves, both asset types will move by about the same amount, and that 1-1.5% premium will remain.
This post is for educational purposes only and does not constitute financial, investment, or legal advice. Past performance does not guarantee future results. Yields and spreads referenced are approximate and based on historical data.
There are banks out there that will do business savings accounts not much below this (2.85%) while keeping things safe (FDIC insured) and liquid.
All that is to say: businesses shouldn't treat all their cash the same way, especially when they have significant runway. The exact breakdown depends on the business, but typically you can think of it as three different buckets:
1) You have short-term cash, which you need immediately. This is where you'd use a checking account. This pays very close to 0% but you have immediate access. Most businesses might keep a few weeks' cash here.
2) You have short-term reserves, which is what you'd use in the next couple of months. This is where most companies might use a savings account (or even put it in a money market fund), where you know you can get the cash into your checking account in ~1 day. This pays between 2.5% and up to maybe 3.75%. Each business will structure their cash differently, and some might not even bother having this bucket.
3) Long term reserves, which you won't touch for months. This is where companies try to optimize yield, and where Palus is valuable. Even here, your money is safe, and in Palus's case can usually be in your checking account within a couple of days, but getting extra yield on long-term reserves can be super valuable.
Do you work with non-US companies? I have a company in Estonia, and hold some reserve cash (mix of dollars and euro) on a Wise account. It pays 2.20% variable APR, but I’m starting to explore other options :-)
I suppose the Agency MBS holders still had losses during the GFC. Would your clients wear any losses in MBS price of there's another housing downtuurn or recession? Why not diversify into other bonds as well?
Short-duration floating-rate MBS, like the ones we use, were fine. And since regulations have gotten much stricter as a result of 2008, that was very much a worst-case scenario.
We specifically chose agency MBS because their yield and risk profile fits startup long-term cash needs very well (no credit risk by definition, stable NAV preventing principal risk, consistent premium over money market, and easy but non-instant liquidity). Essentially their safety reduces the need to diversify across bond types. It's also worth pointing out that MBS already are quite diversified, since each one is a pool of thousands of mortgages spread across different locations, borrowers, and property types.
We might offer non-MBS options in the future, if customers ask for it, but we're not there yet.
If you ever want to pivot an idea I am suprised no one does is why don't long term bets e.g. 2028 president pay interest. When you bet on something almost certain in 5 years you always lose due to lost interest. Maybe bets can include interest or even be chucked in SP500 for duration.
I'd say your long-term bets are earning interest... it's just going to the house and not to you
Again, I hope this doesn't come as negative, but I'm not sure this is making the risk clear. I am not sure I would suggest my portfolio companies to risk their treasuries unless I am sure they're fully understanding the risks associated. Do you intend to provide anything else?
On the government backing: it's a fair nuance to point out. In a technical sense, Ginnie Mae has the explicit full faith and credit guarantee while Fannie/Freddie are GSEs with an implicit one (and are under government conservatorship). But in practice, the distinction isn't really meaningful. In practice, the federal government has always guaranteed these loans (even in 2008, when they were under the most stress they've ever been, and there have been significant reforms as a result). There's no reason to think they'll ever stop. The scenario where the GSE guarantee fails is essentially the collapse of the US economy well beyond anything we saw in 2008 (in which case frankly we all have much bigger problems).
On the risks you mentioned: 1) Principal loss: given the guarantees re credit risk, and the fact that we use short-duration floating rate instruments to protect against price risk, this shouldn't really be a concern. 2) On spread risk: there can be slight variation in spread, mostly affecting yields; this is why we say "4.5-5%" yields given there's some variability in that range (but all far above money market). 3) On liquidity: agency MBS is the second most liquid fixed-income market in the world after Treasuries. In nearly all circumstances, liquidity is 1-2 business days. This product is really meant for long-term cash reserves; our idea is that companies should stop treating 6+ month cash the same as next month's payroll.
Ultimately we encourage founders to do their own research and understand what they're doing with their money. We wouldn't ask anyone to put short-term cash in a MBS portfolio (in the future we'll probably offer some other options too). But for long-term cash they're sitting on, the extra yield can be meaningful to the business: on $5M, it's an extra $50k-75k per year, or half a junior engineer's salary. Given the minimal risk, I think it's worthwhile for a lot of companies.
Your market is founders who have put money in an MMF and stopped thinking about it, not the people evaluating different optimization strategies day-to-day. So acknowledging the risks and saying "here's exactly when you should consider us" is exactly the kind of thing that helps overcome that uncertainty hurdle that results in choosing the simplest, safest option.
Founders should obviously do their own research, but that's asking the customer to proactively expend effort digging through future marketing copy to evaluate your product. They're not realistically going to do that as well as they should and the people who don't need to probably aren't your target market.
Honestly this HN post has been really insightful in knowing what questions founders will want us to answer.
There is no free lunch in investing, so that extra yield comes with extra risk. Be that duration, credit, etc. That's not to say MBS's don't have their place, but I would never claim people's mortgages as equivalent to cash in any shape or form. Your website claims MBSF is safe for 3+ month durations, but that is not the avg duration of MBSF held securities, so you are encouraging duration risk.
I haven't read the full prospectus on MBSF, so I'm not an expert on that product, but it seems expensive and complicated, which is not what you want for cash and cash-like things. This should be a hard pass for literally everyone.
Meanwhile you can hold something like ICSH[0] or SGOV[1] with expense in the .09% or lower range(i.e. for every $10k we are talking $9/yr or less in fees). SGOV is 0-3 month max duration, so it's perfect for holdings in the 3 month time-frame. If you need longer time frames you can buy govt bond ladders in whatever time frame you want.
What your product should have been: You specify duration for each of your buckets, and then you pick appropriate, cheap index-based investments that are cheap and easy to reason about for each of the buckets.
0: https://www.ishares.com/us/products/258806/ishares-liquidity... 1: https://www.ishares.com/us/products/314116/ishares-0-3-month...
Functionally speaking, short-duration floating-rate agency MBS trade at such a stable NAV that they're perfectly sufficient for long-term cash, and many large companies trade these.
MBSF is complex in the way that basically any fund is complex, but the strategy it employs is actually quite simple since it only trades a single asset class. Yes the expense ratio is higher than some other funds but the additional yields more than make up for it.
ICSH and SGOV are great funds too, and make sense for shorter-term cash, but they pay significantly less than we do.
Broadly speaking, our product is meant for exactly the kind of cash strategy you're thinking about: multiple buckets with duration spread accordingly. At the moment, our platform is just for the long-term bucket. But in the future, we might add additional shorter-term buckets too (maybe even with ICSH or SGOV).
If this gives an extra 1% per se, I imagine that is more worth it to a company fresh off a large fundraise with a ton of cash in the bank.
Startups otherwise are lean and won't hold enough cash to get a meaningful return from the 1%.
I've had an easy time setting up treasury accounts with Rho & Mercury for 2 co's, but the latter gave me a no-go on an account for a non profit.
However, this tax exemption is usually priced in: muni bond funds, and MMFs that hold lots of tax-exempt assets, tend to return less than funds which are not tax exempt. For the majority of startups that operate at a net loss, tax-exempt funds are probably a bad choice, since you're earning less yield and the tax exemption likely doesn't affect you.
[1] The rules around this also varies from state to state; for instance, in CA, CT, and NY, you can only get any tax exemption if a fund is at least 50% tax-exempt in each quarter of a given year.
5% return is not competitive.
We're competing against long-term cash held in a money-market fund (an instrument optimized for short-term use with same-day liquidity) earning 3.5%. In that context our yields definitely are competitive.
Why not buy Celsius (1) instead, even better yields ;)