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Famous Traders · Bonds

Bill Gross

Bill Gross / The Bond King and Co-founder of PIMCO

A former blackjack card counter who built the world’s largest bond fund, rode a bond bull market for almost 40 years, then stumbled when interest rates began to turn. On this page you can try Kelly betting at a blackjack table and calculate a bond’s total return when rates move.

About 12 min readUpdated 29 Sep 2026
TOTAL RETURN · SERIES 1987Bond King
PEAK ASSETS 2013$293BPIMCO Total Return Fund
  1. 1971Co-founded PIMCO
  2. 1987Launched the Total Return fund
  3. 2013Peak assets about $293B
  4. 2014Left for Janus
FIXED INCOMENEWPORT BEACH

Illustration: designed as a postage stamp, because Gross is a world-class stamp collector. No openly licensed photo was found

Born1944
Co-founded PIMCO1971
Total Return at its peak (2013)$293B
Blackjack stake, as he tells it$200
PIMCO Total Return · 2013$293BThe fund’s peak assets, the largest of any mutual fund in the world at the time
1987 → 2014≈7.8%/yrAverage annual return from the fund’s launch until he left, as reported by Fortune
Las Vegas · 1966$200 → $10,000His blackjack stake as he tells it, which he used to pay for his MBA
01

ProfileQuick facts

NameWilliam H. Gross (Bill Gross)
Born13 April 1944 in Middletown, Ohio, USA
EducationBachelor’s degree in psychology from Duke University (1966) and an MBA from UCLA (1971)
Before financePlayed blackjack in Las Vegas after graduating, then served in the US Navy from 1966 to 1969
FirmCo-founded PIMCO in 1971 as the money management unit of the life insurer Pacific Mutual
NicknameBond King
Famous fundThe PIMCO Total Return Fund launched in 1987, with peak assets of about $293 billion in 2013
AwardMorningstar named him Fixed-Income Manager of the Decade in 2010
Leaving PIMCOOn 26 September 2014 he moved to Janus Capital, then retired from managing funds in February 2019
HobbiesA world-class stamp collector who has given hundreds of millions of dollars to charity
02

Riding the bond bullFrom the blackjack table to a bond bull market lasting almost 40 years

Gross studied psychology at Duke. In his final year he was injured in a car accident and spent his recovery reading Edward Thorp’s book on card counting, Beat the Dealer. After graduating he went to Las Vegas and says he turned $200 into about $10,000 before joining the navy

After his MBA from UCLA in 1971 he joined Pacific Mutual and co-founded PIMCO. His career lined up perfectly with the interest rate cycle: rates peaked in 1981, then fell almost all the way to 2020. Anyone holding bonds in that period profited as prices rose with falling rates. Tap each year to see the story

US 10-YEAR TREASURY YIELD · ANNUAL AVERAGE · APPROX.The US 10-year Treasury yield and Gross’s journey

1971 · After his MBA, Gross joined Pacific Mutual and, with Jim Muzzy and Bill Podlich, set up the money management unit that became PIMCO. Wikipedia says it started with about $12 million, while Pacific Life’s history says it had about $8 million at the end of its first year

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The line shows approximate annual averages of the US 10-year Treasury yield, to show the long-term direction, not official figures. Monthly or daily values could be higher or lower

The principle he says he learned at the blackjack table

Never bet more than about 2% of your capital, however much the odds favour you, because the unexpected can always happen

Paraphrased from an interview summarised by The Acquirer’s Multiple, not a direct quote
03

The Kelly tableLab: the blackjack table, how much can you bet and survive?

Having an edge is not enough; you also have to size your bets right. Simulate 300 card counters, each starting with $200 and the same edge, differing only in bet size per hand, then see where each one’s money goes after thousands of hands

Median player’s money at the end—
Finished with a profit—
Fell below $20 at some point—
Reached $10,000—
Kelly for this edge = 2%

A simple model: each hand wins or loses an amount equal to the bet, and the chance of winning is 50% plus half the edge. Splits, doubles and 3-to-2 blackjack payouts are excluded. Minimum bet is $1. A real card counter’s edge depends on table rules and betting method, usually around 0.5–2%. Every run is random

What this means for Forex

A trading system with an edge can still lose many times in a row. If you risk too much per order, 10 losses in a row can leave your account unable to recover. That’s why most traders limit risk per order to about 1–2% of capital, which matches the rule Gross used at the blackjack table

HOUSE EDGE · COST OF TRADING

Cut the house edge Spreads and commissions are the other side’s edge. Open an XM account through 1TRADER and get up to 90% of the IB commission on every lot

Open account ↗

1TRADER is a partner (IB) and earns a commission when you open an account through our link · % is the share of IB commission returned to you · How to get rebates

04

Total returnLab: a bond’s total return when interest rates move

The heart of Gross’s style is total return: the interest received plus the gain or loss from bond prices, which move opposite to rates. Long-term bonds (high duration) move more. Pick a real year or set the values yourself, then see what holding a bond for one year would earn

Interest received (carry)—
Price gain or loss—
1-year total return—
Maximum rate rise (break-even)—

A simple model: total return ≈ yield at purchase − duration × rate change + approximate convexity, as if rates changed at the start of the year. The chosen years use approximate US 10-year Treasury yields at the start and end of the year. Not the actual performance of any fund

What this means for Forex and gold

When US bond yields rise sharply, as in 2022, the dollar tends to strengthen and gold tends to come under pressure, because cash and bonds pay more. When rates fall, as in 2008 or 2020, the picture often reverses. The bond market is a compass for currency and gold traders

CARRY · COSTCosts per lot eat into total return tooTrade with XM account through 1TRADER and get up to 90% of the IB commission on every lot

1TRADER is a partner (IB) and earns a commission when you open an account through our link · % is the share of IB commission returned to you · How to get rebates

05

Fact checkFact check: truth and stories passed along

Gross’s life includes legends he tells himself and news from his downturn that has been exaggerated. We sort each one by the weight of the evidence

NicknameSupported

Bond King came from the media

Wikipedia says Fortune magazine called him the Bond King in 2002, and the financial media kept using the nickname until he retired

1966Partly true

Turned $200 into $10,000 at blackjack

This is a story Gross has told in many interviews: he read Edward Thorp’s Beat the Dealer and went to count cards in Las Vegas. No independent evidence confirming the figures has been found

2013Supported

Was once the world’s largest mutual fund

CNBC reported that Total Return had peak assets of about $293 billion in 2013, before losing the top spot to a Vanguard stock index fund in October of the same year

1971Common misconceptions

Gross founded PIMCO alone

PIMCO began as a unit of Pacific Mutual, with Jim Muzzy and Bill Podlich as co-founders alongside Gross. He led investments, but was not the sole founder

2011Supported

Sold all his Treasuries and got it wrong

Forbes reported that the fund cut US Treasuries to zero in February 2011, then rates fell instead. The fund lagged its benchmark and trailed most rival funds that year

2014Partly true

Was fired from PIMCO

He resigned and moved to Janus himself on 26 September 2014, amid reports that the firm was preparing to oust him. The following year he sued PIMCO, claiming he was forced out. The case was settled, with no court ruling

2014–2019Common misconceptions

He was just as good at Janus

Fortune reported that the fund he managed at Janus averaged less than 1% a year, lost almost 4% in 2018, and had peak assets of only about $2.24 billion

2017Common misconceptions

The lawsuit money went into his own pocket

CNN reported that the $81 million settlement went entirely to charity, and Gross added more, bringing his total donation to about $100 million

Every lot you trade with XM through 1TRADER earns cash back of up to 90% of the IB commission, lowering your costs over time

Open an account for cash back ↗

1TRADER is a partner (IB) and earns a commission when you open an account through our link · % is the share of IB commission returned to you · How to get rebates

06

LessonsLessons for Forex and gold traders

Your checklist
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01

Think in total return

A bond’s return comes from interest received plus price gains or losses. It’s the same in Forex: an order held overnight has both swap and price movement, and you must count both

02

Bet size matters more than confidence

Gross’s first lesson from the blackjack table was never to bet more than about 2% of capital, even with an edge, because losing streaks can always happen. Apply the same principle to risk per order

03

Separate the big picture from your entry timing

PIMCO held a forum every year to look at 3–5 year trends, then adjusted the portfolio to short-term news. Traders should know the big interest rate trend first, then look for timing from economic data

04

Your view can be right but your timing wrong, and still lose

In 2011 Gross thought rates had to rise, but they actually rose years later, and in the meantime the fund lagged its benchmark. Set the point where you admit you’re wrong in advance; don’t let a macro view turn into stubbornness

07

Quiz5-question quiz

Question 1 / 5

In which year was PIMCO founded?

08

Follow the ratesFollow rates, control your bet size, then look for timing

What you can apply from Gross is treating interest rates as the big picture, thinking about returns in total, and never betting more than you can afford to lose.

REBATE · 1TRADER

Trade like a pro: control your costs

Open an account through 1TRADER and get cash back on every lot you trade, lowering your spread and commission costs over time.

How to get rebates, step by step →

Leveraged trading carries high risk. Study the broker’s terms and the risk disclosure before opening an account.

09

Further readingFurther reading

  • Bill Gross on InvestingWilliam H. Gross · 1998Gross’s own book, on total return thinking, looking at long-term trends, and his story from the blackjack table to PIMCO
  • Beat the DealerEdward O. Thorp · 1962The book Gross says he read before going to Las Vegas, explaining card counting and the idea of bet sizing when you have an edge
Sources for this article
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FAQFrequently asked questions

Who is Bill Gross?

The co-founder of PIMCO in 1971 and manager of the PIMCO Total Return fund, once the world’s largest mutual fund. The media called him the Bond King

Why was he called the Bond King?

Because he managed one of the largest pools of money in the bond market anywhere. His main fund had peak assets of about $293 billion, and his views on interest rates could move markets

Did Gross really play blackjack?

He says that after graduating from Duke in 1966 he went to count cards in Las Vegas, turned $200 into about $10,000, and learned a lesson about bet size that he used throughout his career. The figures come from his own account

Why did Gross leave PIMCO?

After weak performance in 2011 and 2013 and internal conflict at the firm, he left for Janus Capital on 26 September 2014. He later sued PIMCO and settled in 2017 for $81 million, which went to charity

How can his ideas be used with Forex and gold?

Follow the direction of interest rates, the main driver of currencies and gold, think in total return including both swap and price, and limit risk per order to about 1–2% of capital

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Educational content, not investment advice. Return and asset figures are publicly reported figures. The labs use approximate data and simple models. · risk disclosure · Forex glossary