The markets are always a running argument among buyers and sellers about the current value of the future. But right now, Wall Street is spending a lot of time debating what year from the past looks most like 2019 – and what that means for the market outlook. Historical patterns and references to major market moments from prior cycles are always a feature of investment commentary. But as 2019 unfolds, there has been a proliferation of strategists evoking particular years as a useful guide for today's markets.

1988

Source: FactSet Longtime market strategist Barry Knapp this month launched Ironsides Macroeconomics with an extended comparison of 2018-'19 to 1987-'88. In '87, a bull market that had been rolling for several years rose to new heights as the U.S. economy accelerated following a major tax-reform law. The Fed was tightening aggressively and the president was ratcheting up trade protections against an export-reliant Asian economic Power (Japan). Stock valuations hit an historic extreme and a correction turned into a crash thanks in part to untested trading techniques.

Worried trader watches stocks plunge at Stock Exchange on Oct. 23, 1987. Dennis Caruso | New York Daily News | Getty Images

But the October '87 crash led to no recession, the Fed reversed course to ease policy, and stocks recovered through 1988 - until a brief recession approached in 1990. We had the post-tax-cut surge to an overvalued condition early last year, then the fourth-quarter crash amid a tighter Fed and China trade frictions, exacerbated along the way by short-volatility strategies (in February) and hedge-fund liquidations (December).

1995

Source: FactSet Tony Dwyer of Canaccord Genuity is the most vocal articulator of this analogy, which is probably the most bullish analogy available, given the levitated in 1995 by 35 percent without even a 5 percent pullback. His case: In 1994, the Fed boosted short-term rates aggressively to head off inflation, lifting the Federal funds rate from 3 percent to six percent by early 1995. At the time, economists thought unemployment dipping below 6 percent was an inflation threat, and it got there. The Treasury yield curve went completely flat (2- and 10-year yields about equal). Stocks were sideways that year but small-caps had a bear market and bank shares tanked – a "stealth bear market" in some respects. By early 1995, the U.S. economy was clearly slowing. Fed Chair Alan Greenspan signaled he was likely through tightening, and in fact by summer the Fed cut rates as GDP growth slipped toward 1 percent for a quarter. By then, stocks got the message: a productivity boom was kicking in, growth resumed without much inflation, volatility collapsed. In a speech last summer, current Fed Chair Jerome Powell explicitly and admiringly evoked Greenspan's intellectual flexibility in letting the economy run that year. In some respects, the year 2013 was already a 1995 rerun, with financial markets unclenching from a growth-and-rate scare to melt up by 30 percent. But bulls can at least hope Powell's pivot has a similar effect on markets as Greenspan's did 24 years ago.

2009

Source: FactSet Tom Lee of Fundstrat is virtually alone in arguing this year could follow the 2009 path. Understandably: In early 2009, stocks made a climactic bear-market bottom with the S&P 500 hitting a 12-year low at the end of the worst global recession in 70 years. Last quarter's quick near-20 percent drop to a 20-month low in a 3-percent GDP U.S. economy hardly seems to compare. Yet he offers a checklist of conditions that he says line up between today and '09: a "waterfall decline" in stocks creating a major low; high-yield bonds posting a rare annual negative return (2018 and 2008); "persistent negative sentiment" even after stocks rebounded; and a dovish Fed turn.

2016

Source: FactSet This is the template freshest in mind and probably most often cited by investors. The S&P 500 made a new record high early in 2015 before turmoil in China and emerging markets and an oil-price crash created an industrial retrenchment and sent S&P 500 earnings negative for a couple of quarters. (Similar to 2018 with the emerging-markets struggles and earnings-recession talk). The Fed was struggling to start "normalizing" policy in 2015 and squeezed in a controversial December rate hike, then immediately went into "pause" mode and held rates steady for a year (just as in December 2018). Treasury yields remained tame, dividend-centric and big secular-growth stocks led the market higher as the world awaited the Brexit vote. Hear the echoes with the current setup. The 2016 analogy works only so far, given we'll have no 2019 election to flip the story entirely from slow-growth, fiscal restraint, deflation risk to tax cuts, deregulation and reflationary policy. But for now the markets are acting not unlike the way they did in the first half of 2016. This comparison has become popular enough among investors that Morgan Stanley strategist Mike Wilson was moved this week to publish a report saying, "Is this 2016 all over again? Probably not." His pushback: China is not stimulating as forcefully, the Fed has already tightened policy a good deal, stocks are less cheap now compared to bind yields and the economic, labor and corporate-profit cycles are much more mature.

2000