PER CURIAM Opinion; Concurrence by Judge REINHARDT.

OPINION

Eminence Capital, LLC, lead plaintiff in this class action securities fraud litigation, appeals the district court’s dismissal with prejudice under Fed.R.Civ.P. 12(b)(6) of its first amended consolidated complaint for failure to state a claim. Because the district court failed to provide sufficient reasons to overcome the presumption in favor of granting leave to amend, we reverse the judgment.

I. BACKGROUND

We summarize the facts set forth in appellant’s first amended consolidated complaint and assume them to be true for the purposes of our decision. See Epstein v. Washington Energy Co., 83 F.3d 1136, 1140 (9th Cir.1996).

A. Facts

Appellee Aspeon, Inc., a company based in Irvine, California, manufactures and sells touch-screen hardware systems for retail business computer networks, such as those used by waiters in restaurants to enter customer orders. 1 Appellee Richard Stack is Aspeon’s Chief Executive Officer, and appellee Horace Hertz is Aspeon’s former Chief Financial Officer. Lead plaintiff Eminence Capital, LLC, is an institutional investor and one of the share *1050 holders who purchased stock in Aspeon between October 28, 1999 and September 28, 2000 (“class period”). During the class period, Aspeon was a publicly traded company required to file with the Securities and Exchange Commission quarterly reports, known as Form 10-Qs, at the end of each financial quarter. At issue in this case are the 10-Qs for the quarters ending September 30, 1999, December 31, 1999, and March 31, 2000.

In each of its initial reports, accompanied by press releases, Aspeon painted a rosy picture of the company’s profitability and financial prospects. In its 10-Q for the quarter ending September 30, 1999, Aspeon reported that revenues totaling $20.2 million represented an increase of 57 percent from the previous year. In its 10-Q for the quarter ending December 31, 1999, Aspeon reported that revenues totaling $24.3 million represented an increase of 36 percent from the previous year. In the accompanying press release, Stack stated that these “results demonstrate the ability of our management team to operate profitably the original hardware business while incubating a sizable ASP business.” In its 10-Q for the quarter ending March 31, 2000, Aspeon reported revenues of $20.0 million compared to $21.1 million from the previous year. In a press release Stack announced that the company had “a clear path to profitability.”

On September 29, 2000, Aspeon announced that it would be restating the quarterly results for the period in question. On or about December 18, 2000, Aspeon filed its restatement. In its restated form 10-Q/A for the quarter ending September 30, 1999, Aspeon stated that there had actually been losses resulting in income loss of 21% from the previously reported results. 2 In its restated form 10-Q/A for the quarter ending December 31, 1999, Aspeon also reported losses rather than gains. 3

Finally, in its restated form 10-Q/A for the quarter ending March 31, 2000, Aspeon reported losses resulting in a reduction of net income available to shareholders of $1,717,000. The price of Aspeon stock declined on October 10, 2000 to $1.50 per share, from a high of $30 per share on March 10, 2000. Aspeon was de-listed from the NASDAQ on January 4, 2001.

B. Procedural History

On October 11, 2000, Jay Spechler filed a class action suit against Aspeon, Stack, and Hertz in federal district court. The complaint alleged violations of sections 10(b) 4 and 20(a) 5 of the Securities Ex *1051 change Act of 1934, and of Rule 10b-5. 6

Eventually, eight separate shareholder suits were filed against Aspeon. On December 22, 2000, the district court granted plaintiff Spechler’s motion to consolidate the cases. On January 5, 2001, the district court designated Eminence as lead plaintiff under 15 U.S.C. § 78u-4(a)(3)(B). On January 31, 2001, Eminence filed a “consolidated complaint.” The district court granted Aspeon’s motion to dismiss the complaint without prejudice on April 20, 2001. On May 21, 2001, Eminence filed a “first amended consolidated complaint.” In addition to citing Aspeon’s restatements for the first three quarters of fiscal year 2000, the first amended consolidated complaint also recounted a number of factual allegations to support its securities fraud claims. For purposes of clarity, the district court divided these claims into three categories: accounting improprieties, poor business judgments by Aspeon, and the allegedly suspicious relationship between Aspeon and its accountants, PriceWater-houseCoopers.

On September 14, 2001, the district court granted Aspeon’s motion to dismiss the first amended consolidated complaint for failure to state a claim, with prejudice. While acknowledging that the complaint in some respects came close to satisfying the heightened pleading standards for securities fraud cases, the district court nevertheless found that Eminence had failed to plead “false statements” with particularity under § 10(b), and that it had failed to satisfy the scienter requirement of its § 10(b) claim, pursuant to the standards set forth in the Private Securities Litigation Reform Act of 1995 and in In re Silicon Graphics Sec. Litig., 183 F.3d 970 (9th Cir.1999). Finally, stating that Eminence had had “three bites at the apple,” the district court dismissed the complaint with prejudice. Eminence appeals.

II. DISCUSSION

Eminence contends that the district court abused its discretion in dismissing the first amended consolidated complaint with prejudice and thereby denying leave to amend. We agree, and reverse the judgment of the district court.

After a party has amended a pleading once as a matter of course, it may only amend further after obtaining leave of the court, or by consent of the adverse party. Fed.R.Civ.P. 15(a). Generally, Rule 15 advises the court that “leave shall be freely given when justice so requires.” This policy is “to be applied with extreme liberality.” Owens v. Kaiser Found. Health Plan, Inc., 244 F.3d 708, 712 (9th Cir.2001)(quoting Moronga Band of Mission Indians v. Rose, 893 F.2d 1074, 1079 (9th Cir.1990)). In Foman v. Davis, 371 U.S. 178 , 83 S.Ct. 227 , 9 L.Ed.2d 222 (1962), the Supreme Court offered the following factors a district court should consider in deciding whether to grant leave to amend:

Id. at 182 , 83 S.Ct. 227 . See also Allen v. City of Beverly Hills, 911 F.2d 367, 373 (9th Cir.1990)(eiting Foman factors, as well as “previous amendment”); Hurn v. Ret. Fund Trust of the Plumbing, Heating & Piping Indus. of S. Cal., 648 F.2d 1252, 1254 (9th Cir.1981).

Not all of the factors merit equal weight. As this circuit and others have held, it is the consideration of prejudice to the opposing party that carries the greatest weight. See DCD Programs, Ltd. v. Leighton, 833 F.2d 183, 185 (9th Cir.1987). Prejudice is the “touchstone of the inquiry under rule 15(a).” Lone Star Ladies Inv. Club v. Schlotzsky’s Inc., 238 F.3d 363, 368 (5th Cir.2001); Howey v. United States, 481 F.2d 1187, 1190 (9th Cir.1973)(stating that “the crucial factor is the resulting prejudice to the opposing party”); cf. DCD Programs, 833 F.2d at 186-87 (noting that party opposing amendment “bears the burden of showing prejudice”). Absent prejudice, or a strong showing of any of the remaining Foman factors, there exists a presumption under Rule 15(a) in favor of granting leave to amend. See Lowrey v. Tex. A & M Univ. Sys., 117 F.3d 242 , 245 (5th Cir.1997). A simple denial of leave to amend without any explanation by the district court is subject to reversal. Such a judgment is “not an exercise of discretion; it is merely abuse of that discretion and inconsistent with the spirit of the Federal Rules.” Foman, 371 U.S. at 182 , 83 S.Ct. 227 ; Klamath-Lake Pharm. Ass’n v. Klamath Med. Serv. Bureau, 701 F.2d 1276 , 1292-93 (9th Cir.1983)(noting “where the record does not clearly dictate the district court’s denial, we have been unwilling to affirm absent written findings”); Rolf v. City of San Antonio, 77 F.3d 823, 828-29 (5th Cir.1996); United Steelworkers of Am., AFL-CIO v. Mesker Bros. Indus., Inc., 457 F.2d 91, 94 (8th Cir.1972).

Dismissal with prejudice and without leave to amend is not appropriate unless it is clear on de novo review that the complaint could not be saved by amendment. Chang v. Chen, 80 F.3d 1293, 1296 (9th Cir.1996). A district court’s failure to consider the relevant factors and articulate why dismissal should be with prejudice instead of without prejudice may constitute an abuse of discretion. See Foman, 371 U.S. at 182 , 83 S.Ct. 227 ; see also Schreiber Distrib. Co. v. Serv-Well Furniture Co., 806 F.2d 1393 , 1401 (9th Cir.1986); Klamath-Lake, 701 F.2d at 1292-93.

Adherence to these principles is especially important in the context of the PSLRA. The PSLRA requires a plaintiff to plead a complaint of securities fraud with an unprecedented degree of specificity and detail “giving rise to a strong inference of deliberate recklessness.” In re Silicon Graphics, 183 F.3d 970, 979 (9th Cir.1999). This is not an easy standard to comply with — it was not intended to be— and plaintiffs must be held to it. But how much detail is enough detail? When is an inference of deliberate recklessness sufficiently strong? There is no bright-line rule. Sometimes it is easy to tell, but often it is not. The acid test is a motion to dismiss. We need to bear in mind that we are not operating in the world of notice pleadings. In this technical and demanding corner of the law, the drafting of a cognizable complaint can be a matter of trial and error.

*1053 Here, the district court concluded that leave to amend should be denied because “[pjlaintiffs have had three ‘bites at the apple’ and defend the dismissal without prejudice only on grounds that the special committee will release a report that will provide all the requisite details [required to plead a case under PSLRA].”

To begin with, plaintiffs had not filed three substantially similar complaints alleging substantially similar theories. This is not a case where plaintiffs took “three bites at the apple” by alleging and re-alleging the same theories in an attempt to cure pre-existing deficiencies. Instead, plaintiffs’ First Amended Consolidated Complaint included additional theories not previously alleged. Consequently, it is not accurate to imply that plaintiffs had filed multiple pleadings in an attempt to cure pre-existing deficiencies.

In addition, nothing suggests that plaintiffs’ proffer that additional evidence was forthcoming which would enable them to add necessary details to their complaint was false or made in bad faith or for an improper purpose. Indeed, the opposite seems to be the case. The existing record demonstrates that plaintiffs’ allegations were not frivolous and that they were endeavoring in good faith to meet the heightened pleading requirements governing the PSLRA. The district court acknowledged that “plaintiffs allege with the requisite detail regarding who, what, when, and by whom false statements were made.” The district court only concluded that plaintiffs “fail[ed] to plead sufficiently how and why the financial statements were false because plaintiffs fail to provide requisite detail in the accounting allegations.”

We do not quarrel with the district judge’s assessment that the First Amended Consolidated Complaint was deficient. However, we believe that the district court did not appropriately exercise its discretion by denying plaintiffs leave to amend where, as here, plaintiffs’ allegations were not frivolous, plaintiffs were endeavoring in good faith to meet the heightened pleading requirements and to comply with court guidance, and, most importantly, it appears that plaintiffs had a reasonable chance of successfully stating a claim if given another opportunity.

REVERSED and REMANDED.

. Aspeon was formerly known as Javelin Systems, Inc.

. The restatement announced a decrease in reported revenue of $269,000, a reduction in gross profit of $78,700, and net income of $.05 per share for the quarter, compared with previously reported net income of $.07 per share for the quarter.

. The restatement demonstrated a decrease in reported "other income" of $259,800, a reduction in reported net income of $186,000, a reduction in income from operations' of $440,000, and a reduction in net income of $269,000.

. The act in part makes it unlawful:

15 U.S.C. § 78j(b).

. The section, targeting "controlling persons,” states that:

15 U.S.C. § 78t(a).

. The rule provides that:

17 C.F.R. § 240.1 Ob-5.