to your HTML Add class="sortable" to any table you'd like to make sortable Click on the headers to sort Thanks to many, many people for contributions and suggestions. Licenced as X11: http://www.kryogenix.org/code/browser/licence.html This basically means: do what you want with it. */ var stIsIE = /*@cc_on!@*/false; sorttable = { init: function() { // quit if this function has already been called if (arguments.callee.done) return; // flag this function so we don't do the same thing twice arguments.callee.done = true; // kill the timer if (_timer) clearInterval(_timer); if (!document.createElement || !document.getElementsByTagName) return; sorttable.DATE_RE = /^(\d\d?)[\/\.-](\d\d?)[\/\.-]((\d\d)?\d\d)$/; forEach(document.getElementsByTagName('table'), function(table) { if (table.className.search(/\bsortable\b/) != -1) { sorttable.makeSortable(table); } }); }, makeSortable: function(table) { if (table.getElementsByTagName('thead').length == 0) { // table doesn't have a tHead. Since it should have, create one and // put the first table row in it. the = document.createElement('thead'); the.appendChild(table.rows[0]); table.insertBefore(the,table.firstChild); } // Safari doesn't support table.tHead, sigh if (table.tHead == null) table.tHead = table.getElementsByTagName('thead')[0]; if (table.tHead.rows.length != 1) return; // can't cope with two header rows // Sorttable v1 put rows with a class of "sortbottom" at the bottom (as // "total" rows, for example). This is B&R, since what you're supposed // to do is put them in a tfoot. So, if there are sortbottom rows, // for backwards compatibility, move them to tfoot (creating it if needed). sortbottomrows = []; for (var i=0; i
Imagine this scenario. You've just left your old job, but you still have a 401(k) retirement savings account at your former employer into which you had been making pre-tax contributions. You're ready to move that money into an Individual Retirement Account (IRA) where you're thinking about rolling it over into a Roth IRA so it can grow completely tax free into the future. But if you do, you'll have to pay income taxes on the amount you roll over, which you'll have to have withheld out of the money that's in your pre-tax account because you don't have the cash to otherwise pay them.
How much of those pre-tax savings will you have to have withheld to pay those income taxes? And how long will it take you to recover that money with the tax-free growth of the post-rollover amount invested in the Roth IRA?
Believe it or not, these are questions that many Americans may find they need to answer several times during the course of their working lives. In 2025, about half of working Americans were contributing money directly from their paychecks to 401k-type plans through their employers, with most making their contributions on a pre-tax basis.
At the same time, about half of Americans will change employers after about four years on the job. If they've been making pre-tax contributions to their retirement savings, they'll have these exact questions.
Which is why we've built the following tool! Here, we'll need you to enter the amount of money you might be looking to convert from a pre-tax retirement savings account to a Roth IRA and your marginal income tax rate for the tax year in which you'll make the change, assuming the taxes withheld will have to come out of your accumulated pre-tax retirement savings. We'll then estimate the amount of taxes to be withheld and how long your tax-free savings will take to recover back to your pre-tax savings amount. If you're reading this article on a site that republishes our RSS news feed, click here to access a working version of this tool!
In using this tool, the marginal federal tax rate is the one that applies when you add the amount of pre-tax income you're seeking to roll over into a Roth IRA to your expected taxable income for the year. For our default example, we've set the marginal federal income tax rate to be 22%, which applies to the following taxable income amounts for the indicated income tax filing status:
The expected growth rate of the tax-free investment is set at 9%, which is rounded down from the average rate of return for an investment in the S&P 500 of any duration in the years since January 1871.
With these defaults and a pre-tax amount of $24,000, the tool finds the amount of income taxes to be withheld is $5,280, which reduces the amount of funds being rolled into a Roth IRA down to $18,720. If it grows at an average of 9% a year, the amount rolled into the Roth retirement account would take 2.88 years to recover its pre-tax value.
Since those default values may be very different from ones that might be relevant for you, you're welcome to change them to ones that apply for whatever scenario you'd like to consider.
In Part 2, we'll use the same math to explore a different scenario for executing a pre-tax to Roth rollover that can lead to a potentially better outcome for investors considering executing this kind of strategy.
Image Credit: Microsoft Copilot Designer. Prompt: "A digital art concept of a pre-tax retirement account being rolled over into a Roth IRA that shows income taxes being paid out of the pre-tax retirement account".
Labels: investing, personal finance, taxes, tool
Three months ago, we presented a snapshot of how differently gold prices have come to behave since 16 March 2022, when the Fed finally acted to hike U.S. interest rates after allowing the inflation unleashed by the Biden administration to get out of control. In that update, we noted how the price of gold had effectively decoupled from the yield of 10-year inflation-indexed constant maturity U.S. Treasury. In the years since that date, it had come to rise and fall independently of how the Fed set interest rates.
We even likened it to "High Striker", the carnival game where a player seeking to show off their strength swings a mallet on a see-saw that launches a weight up a vertical rail as high as they can. The rising and falling weight was a metaphor for the escalating and plunging price of gold, which was happening without any change in the inflation-indexed Treasury.
Something other than expectations about inflation was obviously driving the price of gold. Today, we know that something else is the policies of central banks around the world.
We know that because of the plunge in gold prices that took place in March 2026, the cause for which has since been identified. A media report published on 26 March 2026 indicates Turkey's central bank acted to sell over 58 tons of its gold reserves to prop up the nation's currency over a two week period in March 2026. Their fire sale sent the global price of the commodity plunging.
Before that date, several nations' central banks had set out to aggressively buy up gold to stock their reserves, which had become a major contributor to the escalation in its price since March 2022.
But it's not just Turkey who has been a big seller in recent months. Russia's central bank similarly sold off a significant portion of its reserves in April 2026 to "fill a budget hole" to support its government's spending, contributing to the downward plunge in gold prices at that time.
Since mid-May, the price of gold has resumed falling, turning into a steep log flume carnival ride-like plunge in the last several weeks. The following chart updates our previous one.
Since 19 June is a U.S. holiday that doesn't affect trading in gold markets, but does affect whether the U.S. Treasury is open for business, we've set the yield of the 10-year inflation-indexed constant maturity U.S. Treasury to be the same as was recorded for the day before. What we find is that between 27 February 2026, just before the Turkish central bank's gold sale, and 19 June 2026, the price of an ounce of gold has fallen by $1,123 to $4,155, a 21% decline.
Meanwhile, we see the 10-year inflation-indexed Treasury yield has increased by almost half a percent to 2.21%. Although it has increased, it still falls well within the range it has swung since April 2024.
What we don't have yet is an explanation for why gold prices have resumed falling over the last four weeks, and especially since the start of June. That we don't suggests it may be another central bank cashing out their gold because those events are often reported well after they occur.
Or not. Sooner or later, someone will do the accounting that explains why gold prices have fallen so much during this period. All we know for now is that the old wives' tale narrative of higher interest rates acting to rein in inflation doesn't explain it.
Image Credit: Microsoft Copilot Designer. Prompt: "An editorial cartoon of a Wall Street bull and bear on a log flume ride called 'THE GOLD RUSH' that's heading downward where the bear is happy and excited but the bull is scared".
The S&P 500 (Index: SPX) showed off the dueling forces of the ongoing AI boom and the rising likelihood of interest rate hikes affecting the direction of the U.S. stock market in the Juneteenth holiday-shortened trading week. Despite rising and falling during the week, the index ultimately ended up 0.9% at 7,500.58 as the prospect of gains from rapidly advancing AI technologies edged out the expected higher cost of borrowing for the firms making those big investments.
That outcome came after the a hawkish Fed sent stock prices falling on Wednesday, 17 June 2026 as expectations for two rate hikes in 2026 took hold. The CME Group's FedWatch Tool has moved up the expected timing of a quarter point increase in the Federal Funds Rate to a target range of 3.75-4.00% three months earlier, now expected the move to happen after the Fed meets on 16 September (2026-Q3). The FedWatch tool also now anticipates a second quarter point rate hike on 9 December (2026-Q4).
There was some good news, in that the FedWatch tool no longer suggests a bias toward rate hikes in 2027 and even sees the potential for a quarter point rate cut by October (2027-Q4).
With the end of 2026-Q2 now in the past from a dividend futures perspective, investors look to have shifted their forward-looking focus away from the effectively ended quarter of 2026-Q2 to the distant future quarter of 2026-Q4 in setting current day stock prices. The latest update of the alternative futures chart shows the trajectory of the S&P 500 is most closely paralleling the dividend futures-based model's projected trajectory associated with investors setting their attention on 2026-Q4.
There was one other market moving event that had outsize influence over the direction of stock prices during the week that was. The U.S. and Iran reached an agreement to continue their ceasefire into November 2026 while they continue negotiating, which provided the momentume for the market's gains on Monday. In the absence of other developments related to that geopolitical event, we anticipate its influence will continue waning.
Here are the market moving headlines for the week that was:
The Atlanta Fed's GDPNow tool's estimate of real GDP growth for the U.S. economy in the current quarter of 2026-Q2 dipped to +3.0%, falling back from the previous week's real growth estimate of +3.3%.
Image credit: Microsoft Copilot Designer. Prompt: "An editorial cartoon of a Wall Street bull wearing a T-shirt that says 'AI BOOM' and a bear wearing a shirt that says 'RATE HIKES' where the bull asks 'WHICH ONE OF US IS GOING TO WIN?'"
In 2004, biologist Jose Iriarte-Diaz conducted a legendary research project in Chile. Iriarte-Diaz wanted to study how dinosaurs moved, but their extinction some 66 million years earlier hampered his research. The closest he could come was to study how birds walk.
And there lay a new problem. Millions of years of evolution had so changed the anatomy of these surviving descendants of the dinosaur species of old that how they walk would be very different from how dinosaurs walked.
Take today's chicken for example. Here, evolution has conspired to significantly change the body of the species. Unlike their theropod ancestors, chickens lack long tails, which significantly changes their mass and center of gravity, which would have a big impact on how they move.
But then, Iriarte-Diaz hit on a genius idea. What if he could create a prosthetic tail for chickens, then train them to walk with it. He could then compare how both regular chickens and the prosthetic tail-wearing chickens move, where he hypothesized the prosthetic tail-wearing chickens would move like dinosaurs would have. Here's how a press release from the University of Illinois Chicago, where he finally published his research in 2014, described his experiment:
Studying a group of 12 domestic chickens, Iriarte-Diaz used modeling clay to attach a tail — a wooden stick — to the chickens two days after hatching. He changed the tail every five days as the chickens grew, then compared their movements to his control subjects, chickens without tails.
His research suggests that dinosaurs walked more like humans, with a vertical stance and most of the movement in the hips. Chickens without the experimental tails showed more horizontal movements, with the knees doing most of the work.
He also recorded video of the dinosaur tail-wearing chickens and uploaded them to YouTube:
In 2015, Iriarte-Díaz' and his colleagues' work captured the imagination of the Ig Nobel Prize committee, which awarded them the Ig Nobel Biology Prize for their published research.
But the story doesn't end there.
Flash forward to 2026. Allen Pan is a Science and Engineering YouTuber who has drawn popular attention for various devices he's created over the years. He wondered if it would be possible to build an articulated tail prosthetic device for a chicken that might be more realistically dinosaur-like than the static ones Iriarte-Diaz crafted for his biomechanical research. The next video presents Pan's development of the improved prosthetic dinosaur tail and the results from tests conducted with adult chickens:
Pan's 3D-printed articulating dinosaur tail resulted in a chicken almost immediately adopting the kind of dinosaur-locomotion methods it took the chickens that Iriarte-Díaz' and his colleagues' raised and extensively trained from hatched egg to adult bird to produce. It's not just a replication of the Iriarte-Díaz' dinosaur tail prosthetic, but a genuine improvement beyond it utilizing multiple levels of innovations.
In both cases, the dinosaur tail prosthetics represent a fantastic example of outside-the-box thinking.
Labels: technology
Social Security's trustees released their 2026 report on what they expect for the future of the program. As with just about every one of their reports over the last decade, they foresee big benefit cuts when the program's Old Age and Survivors Insurance (OASI) Trust Fund is depleted.
The main changes in this year's report affect the timing of when the trust fund runs out of money and how big the benefit cuts will be after it does. The year of reckoning moved up to the end of 2032 from sometime in 2033, which if they divert money from the program's Disability Insurance (DI) program to it, could last until 2034.
Meanwhile, the magnitude of retirement benefit cuts when the trust fund no longer has any legal claim to money it "loaned" to the U.S. government while it had a surplus will be less than previously projected. Those cuts still aren't small - anyone receiving Social Security benefits will take a 22% hit to them. If they divert the DI trust fund money to keep the retirement benefits train going however, the cuts will be reduced to 17%.
Here is the trustees' official grim outlook:
- The OASI Trust Fund is projected to become depleted in the fourth quarter of 2032, one quarter earlier than projected in last year’s report. Upon reserve depletion in 2032, projected income is sufficient to pay 78 percent of scheduled benefits. This percentage declines gradually to 62 percent by 2100.
- DI Trust Fund reserves are projected to remain positive throughout the 75-year projection period, as was projected in last year’s report.
- The combined OASDI fund is projected to become depleted in the third quarter of 2034, the same quarter as in last year’s report. Upon reserve depletion in 2034, projected income is sufficient to pay 83 percent of scheduled benefits. This percentage declines gradually to 65 percent by 2100.
Social Security has been draining the OASI Trust Fund since 2010. The 2026 Trustees report indicates how big that deficit has been in every year from 2010 through 2025. We tallied up those deficits to find out how much the OASI Trust Fund has shrunk over those years, which we visualized in the following chart:
Through 2025, the OASI Trust Fund has cumulatively shrunk by $1.321 trillion. That's a lot of money, especially when you consider the U.S. government never had the cash to pay back the money it "owes to itself". Instead, it borrowed it, exchanging the debt it supposedly owed to itself for debt it owes to the public.
That raises a question. How much of the total U.S. national debt has gone from being counted as money the government owes to itself to instead be money the government owes to the public, which includes everyone from individual Americans who bought a savings bond to institutions like banks and insurance companies and foreign entities that loan money to the U.S. government by the truckload?
The answer to that question is visually presented in the next chart:
When you hear about Social Security's Trust Fund as being little more than an "accounting fiction", this transformation of debt from money the government owes to itself to be money the U.S. government owes to the public is what they mean. The trust fund debt is unavoidably becoming a general obligation of U.S. taxpayers, which is what it always was and is what it could only ever be.
Image credit: Microsoft Copilot Designer. Prompt: "An editorial cartoon of Uncle Sam pulling money from one of his pockets to put into another pocket while reaching behind himself to borrow money from a banker". From the looks of things, he's gotten himself really twisted up!
Labels: ideas, national debt
Welcome to the blogosphere's toolchest! Here, unlike other blogs dedicated to analyzing current events, we create easy-to-use, simple tools to do the math related to them so you can get in on the action too! If you would like to learn more about these tools, or if you would like to contribute ideas to develop for this blog, please e-mail us at:
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